Educational

Documentaries

• 🌐 Official YT Documentary Channels - YouTube Documentary Channels

• ⭐ IHaveNoTV

• ⭐ DocumentaryArea / Remove Watermark, Chrome (or use PIP)

• ⭐ Documentary+

• ⭐ 1337x Documentaries / Torrent

• YT Video Essay Hall of Fame - YouTube Video Essay Archive

• LearnOutLoud

• Top Documentary Films

• Thought Maybe

• Media Burn Archive

• DocumentaryHeaven

• ARTE

• Documentary Network

• Documentary Storm

• Documentary Tube

• Rocumentaries

• WatchDocumentaries

• PBS

• Nat Geo

• Folkstreams

• Films For Action

• r/Documentaries

• Videoneat

• MVGroup

Courses

Streaming

• 🌐 Limnology - Educational YouTube Channels

• ↪️ [Udemy Tools / Coupons]

• ↪️ [Chemistry Lessons]

• ⭐ edX - Courses / Downloader

• ⭐ MitOpenCourseWare - Courses

• ⭐ Khan Academy - Courses / Downloader

• ⭐ Class Central - Search for Courses

• Course CSE - Multi-Site Course Search

• ⁠Educational Hub - Courses

• Git.ir - Courses

• OpenLearn - Courses

• Alison - Courses

• Saylor Academy - Courses

• EbookFoundation Courses - Courses

• OpenCulture - Courses

• DigitalGarage - Google Courses

• OpenHPI - Courses

• OLI - Courses

• LearnOutLoud - Documentaries / Courses

• Video Lectures - Lectures

• Yale Courses - Lectures / YouTube

• Gresham College - Lectures / YouTube

• Crash Course - Topic Crash Courses

Downloading

• Note - Use [redirect bypassers] to skip annoying link shorteners.

• 🌐 Free-Courses-For-Everyone - Course Site Index

• ⭐ TutFlix - Courses / Drives / Sign-Up Opens Fridays

• ⭐ HackNation - Courses

• ⭐ tut4dl - Courses / Request Guide

• ⭐ Course Busters - Course Busters Access

• FreeCourseSite, 2 or Docspedia - Torrenting Sites / Use [VPN]

• technet24 - Courses

• AfraTafreeh - Courses

• learningDL - Courses / Requires Leech

• LinkedIn_Learning - LinkedIn Courses

• CertCommunity - IT Cert Courses

Learning Sites

• 🌐 Learn Anything - Learning Resource Search / [Free Method] / Discord / GitHub

• 🌐 Wakelet - Learning Resources

• 🌐 OpenCulture - Learning Resources

• 🌐 OSSU - Learning Resources / Discord

• 🌐 The Free Learning List - Learning Resources

• 🌐 Awesome Educational Games - Educational Games Index

• ↪️ [Ebook Sites]

• ↪️ [Quotes / Poetry]

• ⭐ PhET, ⁠Project Lumen, Cognito or Academo - Interactive Lessons

• ⭐ r/coolguides or coolguid.es - Guides & Tutorials

• ⭐ r/educationalgifs - Learn with GIFs

• ⭐ r/explainlikeimfive - Have Anything Explained Very Simply

• ⭐ The Punctuation Guide - Punctuation Guide

• ⁠Basic Knowledge 101 - Knowledgebase / Topic Learning

• media.ccc.de - Educational Presentations

• Ted Talks - Inspiring and Educational Talks

• Stack Exchange or Quetre - Q&A Communities

• Explorabl.es, MinuteLabs, Wikiversity or Learnamic - Quizzes / Guides / Games

• ISODN - International Science Olympiads Discord Community

• Learn About or Learning Coach - Google's Educational Search AIs

• AFAIK - Learning Map / Discord

• AnimaGraffs - Animated Infographs

• Memory Toys, Dual N-Back or BrainScale - Memory Tests / Training

• Information Is Beautiful or HalcyonMaps - Data / Information / Infographics / Visualizations

• HowStuffWorks or CoolMindMaps - Learn How Things Work

• Common Misconceptions - Common Misconception Index

• masterWiki - MasterClass Classes Republished as wikiHow Articles

• LitCharts - Literature Guides

• Appropedia - Sustainability Wiki

• British & Exotic Mineralogy - Mineralogy Database

• ShipSpotting - Ship Index / Images

• Alchemy Forums - Alchemy Forum

• P2PU - Join Learning Groups Using Free Courses

Skills / Hobbies / DIY

• 🌐 Awesome Lego - Lego Resources

• ↪️ [Photography / Cameras]

• ↪️ [Typing Tests / Games]

• ↪️ [Survival / Prepping]

• ⭐ Knots 3D, Animated Knots or NetKnots - Learn to Tie Knots

• Make it Yourself, Instructables or CreativePark - DIY Projects / Crafts

• cholyknight - Free Sewing Patterns for Plushies / Wearables

• Toys from Trash - Use Everyday Items to Make Toys

• HamExam, AA9PW or HamStudy - Ham Radio Practice Exams

• ARRL - Amateur Radio Resources / Learning / Exam Search / Question Pools

• ⁠Mecabricks Workshop or BrickLink Studio - Virtual Lego Building

• Brickset - Lego Set Guide

• ⁠Rebrickable - Lego Collection Manager / Build Ideas

• Ian's Shoelace Site - Learn to Tie Shoelaces

• Perry Morse, Morse Typing Trainer or ICWO - Learn / Practice Morse Code

• Lock Picking 101 - Lock Picking Forum

• LibraryOfJuggling - Juggling Technique Database

• diyhpluswiki - DIY Biohacking

• BeatBlackjack - Learn Blackjack Card Counting

• Excel Practice Online - Excel Practice / Guides

• ActivistHandbook - Campaigning / Activism Guides

• Bridge Command - Bridge Command Ship Simulator

• UER - Urban Exploration / Abandoned Place Forum / MAP

• HypnosisChatBooks - Hypnosis / Telegram

• PaperToys - Printable Paper Toys

• Fold N Fly - Paper Airplane Guides

• AXM Paper Space Scale Models - Spacecraft Paper Models

• Erowid - Psychoactive Information

• PsychonautWiki - Psychonautics Wiki

• Shroomery - Magic Mushroom Forum

History

• ↪️ [Historical Film Archives]

• ↪️ [History Books]

• ↪️ [Historical Maps] - Map Resources

• ↪️ ⁠WW2 Links - Educational WW2 Resources

• ⭐ Historic Films or National Film Preservation Foundation - Historic Footage / Films

• ⭐ Histography - History Timelines

• ⭐ MorbidKuriosity - Dark History, Conspiracies, Crime, Myths, etc.

• LibreTexts History - History Learning Texts

• Smithsonian Institution Archives or RareHistoricalPhotos - Historical Photos / Documents

• Museo - Museum Search

• Wonderous - Learn About Ancient Structures

• Shorpy - Historical Photos

• EyewitnesstoHistory - Historical Eyewitness Testimonies

• HMDB - Historical Marker Database

• ManuscriptMiniatures - Medieval Manuscript Images

• BlackPast - African History Encyclopedia

• Athena - Greek History Encyclopedia

• Theoi - Greek Mythology

• Germanic Mythology - Germanic Mythology

• Inuit Myths - Inuit Mythology

• Mission US - American History Learning Games

• OnThisDay - What Happened on Specific Days

• Royal Constellations - Royal Family Ancestral Visualization

• ⁠Historical Tech Tree or Calculating Empires - Historical Discovery / Tech Timelines

• ETHW - Engineering and Technology History Wiki

• Royal Armouries Collections - Ancient Armaments Museum

• NuclearWeaponArchive - Nuclear Weapons History

• 911 Realtime - 9/11 in Real-Time

• The Food Timeline - Food History Timeline

• Historical Recipes - Historical Recipes Site Index

• Arachne - Ancient Sculpture Image Archive

• SmartHistory - Art / Cultural Object History

• ⁠gwulo - Historical Hong Kong Photo Archive

• CARI - Design Aesthetics History

• ChinesePosters - Chinese Propaganda Poster History

• Historical Fashion - Historical Fashion Resources / History

• PessimistsArchive - Historical Technological Pessimism Archive

• Time Portal - History Clip Guessing

Mythology / Folklore

• ABookOfCreatures, Demons of the Deep or Bestiary - Mythological Encyclopedias

• GodChecker - Religion / Mythology History

• ObscUrban Legend Wiki - Mythology / Urban Legends

• Encyclopedia Mythica - Mythology / Folklore / Religion

• Mythology.net - Mythology / Religion

• Japanese Mythology or Yokai - Japanese Mythology / Folklore

Philosophy

• ⭐ Stanford Encyclopedia of Philosophy, IEP or nLab Philosophy - Philosophy Encyclopedias / Search

• Philosophy Bro, LibreTexts Philosophy, Reasoned, TheDailyIdea or PhilosophyBasics - Philosophy Resources / Learning

• Wireless Philosophy - Philosophy Videos

• ⁠1000-Word Philosophy - 1000-Word Essays on Philosophical Topics

• Untools - Better Thinking Tools

• Brainkit - Learn Helpful Principles

• Art of Manliness - Develop Life Skills

• VisualizeValue - Life Lesson Visualizations

• Sketchplanations - Explanation Sketches

• IEoP, YouLogicalFallacyIs, FallacyFiles or LogicalFallacies - Learn about Logical Fallacies

• YourBias.is - Learn about Biases

• Kialo - Debates / Discussion

• Umsu - Analytic Tableaux Generator

• Proofs - Natural Deduction Proof Checker

• PropCalc - Propositional Logic Calculator

• ModalLogic - Model Logic Playground

• Logitext - Sequent Calculus Tutorial

• WikEnigma - ‘Known Unknowns’ Wiki

• The Trolley Problem Game - The Trolley Problem

• Social Engineers - Social Engineering Guides

Music

• 🌐 Awesome Music Theory - Music Theory Resources

• ↪️ [Sheet Music / Notation]

• ⭐ Muted, Open Music Theory / 2, Chromatone, Teoria, SimplifyingTheory, LightNote or Music Theory - Music Theory

• LibreTexts Music - Music Learning

• AudioZ - Audio Courses / Forum

• Helio / GitHub or NoteHeads - Music Composition Tools

• MusicKit, ⁠Tuner or Tone Generator - Metronome, Tuner & Tone Generators

• Tuner Ninja - Instrument Tuner

• Circle of Fifths - Visualize Notes, Cords and Keys

• ScoreCloud, ChordReader2 or Chordify - Chord Detection / Transcriber

• Arpeggiator, Chordi or AutoChords - Chord Progression Generators

• HookTheory - Chord Progression Library

• Piano Scribe - Piano Transcriber

• LilyPond - Music Engraving Program

• Learning Music or Musicca - Music-Making Lessons

• Midiano / Discord, Piano Trainer / GitHub, Chord Nebula, sightread or PianoCheetah - Piano Practice / Learning

• Keyboard Connect - Keyboard Tutoring App

• TrueToneGuitar, Songsterr, FAChords or ChordBook - Guitar Tools

• FretFlip, Oolimo, StringScales, My Fretboard Trainer, QFGM or GuitarScale - Learn Guitar Scales / Chords

• JamStart - Spotify Chord Charts

• #fretflip - Create / Print Guitar Scales & Chord Charts

• JustinGuitar or Guitarsix - Guitar Lessons

• Ultimate Guitar - Guitar Tabs

• Chorder - Guitar Chord Finder

• Guitar Fretboard, Fretastic or Gitori - Virtual Fretboards / Guitar Lessons

• coop3rdrumm3r or FreeDrumLessons - Drum Lessons

• 911tabs or Finger Tabs - Tabs

• Jazz Improvisor - Improvised Jazz

• LearningSynths - Synthesizers

• Sight Singing Factory - Sight Singing Practice

• A-Complete-UTAU-Tutorial-For-Beginners - UTAU Tutorial

• PerfectPitch - Pitch Recognition Practice

• MusicStaff - Music Teacher Search

• ChiffAndFipple - Irish Traditional Music Forum

• MIMO - Musical Instrument Database

• VGM Sound Sources - VGM Sound Sources / Discord

Art / Editing

• 🌐 Creator Resources - Art & Animation Resource Index

• 🌐 AwesomeAnimeResearch - Anime Machine Learning

• ↪️ [Digital Art Collections]

• ⭐ Art Study Guide - Art Study Guides / Tips

• ⭐ Drawabox, Drawing Starter Pack Playlist, FarsiTuts or Bill Martin's Guide to Drawing - Drawing Lessons

• ⭐ Proko - Figure Drawing Lessons

• ⭐ PaintingTube, MarcoBucci, Alphonso Dunn, Feng Zhu FZD, ⁠Ctrl+Paint, Art Fundamentals or Circle Line Art - Art Video Tutorials

• Ubu - Avant-Garde Artifacts

• online-courses - Art / Design Courses

• TutsPlus - Creative Courses

• Curriculum for the Solo Artists - Self-Taught Artist Curriculum

• DoArtDaily - Daily Art Challenges

• Character Design References - Character Design Visual Library

• FloobyNooby, JMMStoryboardTips or A Guide to Storyboards - Storyboard Guides

• Settei Dreams - Anime Production Materials

• Anime Study General - Anime Production Community

• McLelun - Anime Style Background Tutorial

• AnimeOutline - Anime / Manga Drawing Tutorials

• Design Tuts - Design Tutorials

• PhotoshopTutorials.ws - Photoshop Tutorials

• DomDesigns - Illustrator Tutorials

• PhotoshopTraining, Phlearn or PiXimperfect - Photoshop YouTube Tutorials

• ⁠Practice Drawing This - Drawing Practice

• The Bézier Game - Pen Tool Practice

• ArtWithFlo - Procreate Tutorials

• Paintable - Digital Art Tutorials

• Pedro's Pixel Art Tutorials or SLYNYRD - Pixel Art Tutorials

• MetPublications - Art Learning Books

• GraphicsCodex - 3D Computer Graphic Guides

• DrawingNow or ⁠Drawing Tutorials - Learn to Draw

• Drawingbooks.org - Old Drawing Books

• Line of Action, Timed Figure Poses, LoveLifeDrawing or Daily Life Drawing Sessions - Figure Sketch Tools / Lessons

• AnatomyArchive - Human Anatomy Drawing Tutorials

• Artist Reference - Photo References for Artists

• Reference Angle - Human Photo Reference Search

• x6ud - Animal Photo Reference Search

• Thomas Romain Perspective - Perspective Guide

• Dimensions - Object Dimension Reference

• DevinKorwin Color Guide - Color in Paintings Guide

• Draw Mix Paint or ⁠Ran Art Blog - Learn Oil Painting

• Painting Demos - Painting Demonstrations

• cg_tuts or cgreferenceshub - CG Tutorials

• Seven Camels - Storyboarding Tips / Learning by Disney's Head of Story

• Agora - Animation Learning Community / Tutorials / Discord

• AMV101 - Animated Music Video-Making Guides

Geography / Sociology

• 🌐 Awesome Datasets - Public Datasets

• 🌐 [Country Infographics] - Country Infographic Images

• ↪️ [Historical / Modern Maps] - Map Resources

• ⭐ Worldometer, TheScaleOfLife, WorldBank, US Census, DataUSA, Data.gov or UN Data - World Data & Statistics

• ⭐ Our World in Data - World Problem Database

• ⭐ The Atlas of Economic Complexity - Global Economic Growth Data

• ⭐ Soar - Digital Atlas

• ⭐ ⁠Integrity Index - US Political Finance Integrity Database / Subreddit / Discord

• ⭐ Ekvis / Subreddit / Discord, Seterra, LizardPoint, Worldle, Learn World Map or Teuteuf - Geography Guessing / Quizzes

• LibreTexts Social Science - Social Science Learning

• LibreTexts Geosciences - Geoscience Learning

• Maps.com - Interesting / Educational Maps

• AntipodesMap - Find Antipodes

• The True Size or True Size of Countries - Compare Country Size

• NationsEncyclopedia - Location / Population Data

• City Data - US City Data

• Data Commons or Engaging Data - Data Visualizations

• Global Consciousness Project - Real-Time Global Consciousness Data

• GovTrack - US Government Legislation Tracking / Votes

• Trans Rights Map - Trans Legal Rights Map / Policy Tracking

• OpenSecrets - Government Money Tracking

• If It Were My Home, GlobalEdge or MyLifeElsewhere - Country Data Comparisons

• WorldPoverty - World Poverty Data

• PixelWealth - Wealth Inequality Visualization / Facts / GitHub

• Unequal Scenes - Scenes of Inequality Around the World

• Dollar Street - Compare Homes by Country / Income

• EverySecond - Visualize Per Second Data

• OEC or UN Comtrade - Global Trade Data

• Statista - Market Statistics

• Netblocks - Find Impact of Internet Shutdown on Economy

• Rulers.org - World Heads Of State & Government Database

• World Births and Deaths - World Birth / Death Rates Visualization

• DataUNODC - Drug / Crime Statistics

• Gun Violence Archive - Gun Violence Statistics

• Incarceration in Real Numbers - Incarceration Visualization / Facts

• Expatistan - Cost of Living Calculator

• Climate Data or Climate Explorer - Climate Change Data

• ExtremeWeatherWatch - Extreme Weather Data / Tracking

• En-ROADS - Climate Solutions Simulator

• Global Volcanism Program - Volcano Information Database

• 8000ers - Mountain Visualization & Info

• iCivics - U.S. Law Learning Games

• WorldLicensePlates - World License Plate Index

• Symbols - Symbol Database

• Flag Guesser or Flag Match - Flag Quizzes

• FlagLog or Flaglookup - Flag Databases

• Flag Stories - Flag Design Breakdowns

Virtual Tours

• 🌐 Virtual Museum Resources - Online Museums

• ⭐ CityHop, Travel Remotely, Portal Generator, Walk with Feel, Outside Simulator, Japan Walkaround, CityWalks, Citywalki or Virtual Vacations - Travel Simulators

• Gez.la - Virtual Tours Map

• Wiki Spaces - Virtual Tours

• NaturalHistory - Natural History Museum Virtual Tour

• Digital Giza - Great Pyramid Virtual Tours

• Persepolis Reimagined - Explore Persepolis Recreation

• BelowTheSurface - Archeological Object DB of Amsterdam

• WW2 in 100 Objects - WW2 Museum Virtual Tour

• Spitfire Panorama - Spitfire Mark IX Cockpit Interactve Panorama

• Virtual Vist Tours - Ireland Virtual Tours

• Matterport - Explore Real Places Digitally

• Basilica Viewer - St. Peter’s Basilica Tour

• 360Cities or Airpano - 360 Images / Videos

• Smithsonian 3D - Smithsonian 3D Digitization Museum

• The Bayeux Tapestry - Bayeux Tapestry 3D Digitization

Science / Math

• ↪️ [Science News]

• TIB AV-Portal - Science Videos

• LabXchange, JavaLab or EduMedia - Interactive Science Simulations

Physics

• 🌐 Physics Aviary or Falstad - Physics Tools

• ⭐ The Feynman Lectures - Physics Lectures

• ⭐ Bartosz Ciechanowski, Isaac Physics, PhysicsClassroom, HyperPhysics, MotionMountain or Splung - Physics Lessons / Learning

• ⭐ Physics Simulations, Mujoco, Physics Animations, oPhysics or MyPhysicsLab - Physics Simulations / Animations

• PhysicsTravelGuide - Physics Explanations

• LibreTexts Physics - Physics Learning / Guides

• nLab Physics - Physics Encyclopedia

• Algodoo - Interactive Physics Tool

• QPaths - Learn Basic Quantum Terms

• quantum - Quantum Physics Learning App

• Physics Forums - Physics / Science Forum

• Physics Olympiads - ISODN Physics Discord Community

• Unihedron - Electromagnetic Radiation Spectrum Chart

• Quantum Web Directory - Science / Tech / Math / Physics

• Virtual-Lab - Interactive Quantum Computing Lessons

• Interactive 4D Handbook - Interactive Fourth Dimension

• Ray Optics Simulation - Light Reflection / Refraction Simulator

• Compare Pendulum or DoublePendulum - Pendulum Simulators

• OpenFoam, PC Progress, Fluid Simulation WebGL, WebGL Fluid Experiment or Sim Flow - Fluid Dynamics Simulators

• SimScale or CFDTool - Fluid Dynamics & Heat Transfer

• Bouncy Balls or Balls Simulation - Ball Physics Simulator

• WebGL Water - Water Simulation

• LAMMPS - Molecular Dynamics (MD) Code

• avogadro, 2 or MolView - Molecular Viewers / Editors

• Simuwaerm - Heat Simulator

Math

• 🌐 Awesome Math or Math Resources - Math Resources

• ↪️ [Calculators / Problem Solvers]

• ↪️ [LaTeX Tools]

• ⭐ Number Academy - Encyclopedia of Numbers

• ⭐ Wumbo - Math Reference Site

• ⭐ Open Source Society University / PT-BR - Math Roadmap / Discord

• ⭐ AoPS Alcumus or MathDash - Adaptive Problem Solving

• ⭐ BetterExplained - Math Guides / Courses

• ⭐ Manim, 2 - Generate Explanatory Math Videos / Videos / Difference Between Versions

• ⭐ WolframAlpha - Searchable Knowledge Base / [Mobile] (search)

• Wolfram MathWorld or nLab Math - Mathematics Encyclopedias

• ⁠Immortal's Maths Problems, ⁠Evan Chen, Pauls Online Math Notes or LibreTexts Math - Math Practice / Guides

• Red Blob Games or Mathspad - Interactive Math Sites

• Matthen - Math Animations

• ⁠Math Discord - Math Help / Community Discord

• Mathcha, Corca or Math Editor - Online Math Editors

• SequenceDB - Sequence Machine

• OEIS - Encyclopedia of Integer Sequences

• ⁠ProofWiki - Mathematical Proofs Encyclopedia

• Giac/Xcas - Algebra System

• Algebra Rules - Learn Algebra Rules

• CalculusMadeEasy - Learn Calculus

• CLP - Calculus Textbooks

• Mathematics Roadmap or ⁠Learn Mathematics - Mathematics Book Recommendations

• Converter Pro, Rink, Frink, OneConverter or ConvertAll - Unit Converters / Calculators

• MathJax - JavaScript Math Display

• ISciDAVis - Scientific Data Plotter

• Approach0 - Math Formula Search

• MathOnline or Mathigon - Math / Courses

• Professor Leonard, 3Blue1Brown or MisterWootube - YouTube Math Lessons

• Mathispower4u, ⁠Andy Math, SchoolYourself, mathhelp, MathPortal, ⁠MadAsMaths, Math Planet or CoolMath - Math Lessons / Practice

• CoolMathGames - Math Games

• Cut The Knot - Math Equations / Problems

• IXL Learning - Math Practice / Quizzes

• HSCMathsByTopic - HSC Math Practice

• ParkMath or FreeMathHelp - Math Guides

• ISODN Math - ISODN Math Discord Community

• Fourier Transform - Interactive Fourier Transform Guide

• Terence Tao Research - Mathematical Research

• OpenLogicProject - Math Logic Teaching Materials

• Math is Fun - Math Tutorials / Puzzles / Games

• Brainstellar Puzzles - Puzzles from Quant Interviews

• Project Euler - Math / Programming Problems

• LibreTexts Statistic - Statistic Practice / Guides

• IMS - Introduction to Modern Statistics

• Seeing Theory or Stat Trek - Statistics & Probability Tutorials

Engineering

• 🌐 The Engineering Toolbox or EngineersEdge - Engineering Resources

• 🌐 r/EngineeringStudents Resources - Engineering Student Resources

• 🌐 Awesome Mecheng - Mechanical Engineering Resources

• 🌐 Awesome Electronics - Electronic Engineering Resources

• 🌐 Engineering Blogs - Engineering Blogs

• ↪️ [Comp Sci Resources]

• ↪️ [3D Modeling] / [CAD Apps]

• ⭐ r/AskEngineers / Wiki, r/engineering or r/AutomotiveEngineering - Engineering Subreddits

• ⭐ NPTEL or Sabin - Engineering Courses

• ⭐ KiCad / Libraries or Horizon EDA - Schematics Editor / PCB Creator / SPICE Integration

• Formulia - Engineering Formulas / Tools

• Sanfoundry - Engineering Questions & Answers

• LibreTexts Engineering - Engineering Learning / Guides

• CESDB - Engineering Software

• ⁠Animated Engines - Engine Animations / Explanations

• 507 Movements - Mechanical Movement Animations

• Robot Shop - Robotics Forum

• VisRo Robotics / Discord or ⁠VittaScience - Robotics Learning

• Humanoid Robots Wiki - Robotics Courses Index

• Cyberbotics - Robot Simulator

• Diode - 3D Hardware Simulator

• Wokwi - Arduino / ESP32 Board Simulators

• HDLBits - Learn Circuit Design

• Falstad, ⁠Fritzing, SKiDL / GitHub, atopile, EasyEDA or LibrePCB - Electronic Circuit Design / Simulation Tools

• ⁠The Pinouts Book - Pinout Function Reference Guide

• Circuit Steps - Circuit Analysis Tool

• BatteryUniversity - Learn About Batteries

• Electronics Tutorials or Instrumentacion - Electronic Guides

• ⁠Hacker Fab - Semiconductor Documentation / Research

• RetroSix - Retro Console Repair Guides + Info / Discord

• /m/engineering - Engineering Multireddit

• ⁠McMaster or 3D Find It - Free 3D Printable Hardware Parts + Tools

• Build List - On-Demand Online Manufacturers

Aerospace Engineering

• 🌐 Awesome Aerospace Engineering - Aerospace Engineering Learning Resources

• 🌐 Awesome Flying FPV - Remote Copter / Plane Resources

• ↪️ [Spacecraft Resources]

• ↪️ [Flight Resources]

• ⁠r/AerospaceEngineering - Aerospace Engineering Community

• ⁠AerospaceWeb - Aerospace Info Database / Calculators / Q&A

• ⁠The Rocketry Forum - Rocketry Forums / Community

• ⁠r/rocketry - Rocketry Community / Discord

• Nakka Rocketry - Rocket Technical Archive

• JCRocket - Rocketry Technical Information / YouTube

• Half Cat Rocketry - Liquid Rocket Motor Guide / Info / Resources / X / Discord / GitHub

• ⁠OpenRocket - Rocket Simulator / Wiki / Discord / GitHub

• ⁠RocketReviews - Rocket Reviews / Test Results

• ThrustCurve - Rocket Motor Performance Database / GitHub

• ⁠MIT Rocket Team - Official MIT Rocket Team Wiki / Resources Wikipedia

• ⁠Jacobs Rocketry - Rocketry Info / Manuals

• Tripoli Rocketry or ⁠NAR / Facebook - High-Powered Rocket Resources / Info

• ⁠Hot Nozzle Society - High-Power Rocketry Guide / Community / X / Discord

• ⁠RocketPy - High-Powered Rocket Simulator / Discord

• ⁠openMotor - Internal Ballistics Simulator

• AirVectors or PlaneSpotters - Aircraft Indexes / Images

• Flight Mechanics - Aircraft Flight Mechanics Learning

• ⁠Av8n - Aviation Physics Textbook

• SmartCockpit - Aircraft Systems / Technical Manuals

• Boeing 737 Technical Site - B737 Technical Engineering Guides / History / YouTube

• OpenVSP - Aircraft Geometry Tool / GitHub

• Outerzone - Vintage Model Airplane Plans

• Airfoil Tools - Airfoil Coordinates / Dat Files

• ⁠OscarLiang.com - FPV Drone Tutorials / Reviews

• OpenDroneMap - Drone Mapping Software

• Stolen Drone - Stolen Drone Info

Chemistry

• 🌐 Wolfram Alpha Chemistry - Chemistry Calculators / Tools

• ↪️ [Chemistry Lessons]

• ↪️ Periodic Tables

• ⭐ Lab Safety Guide / Intro

• ⭐ LibreTexts Chemistry - Chemistry Texts

• ⭐ Internet Chemistry - Chemistry Search Index

• Chemistry Basics - Basics of General, Organic, and Biological Chemistry

• ChemicalAid, ⁠WebQC or Chemequations - Chemistry Calculators / Element Tables

• QuickChem - Chemistry Calculator

• PubChem, MOTM, NIST or EssentialChemicalIndustry - Chemistry Wikis

• ChemistrySteps, Science Geek or DocBrown - Chemistry Practice / Guides

• Cliffnotes Chemistry / Organic Chemistry I / Organic Chemistry II, Chem Wiki or chemguide - Study Guides

• ReactionFlash / iOS - Chemical Reaction Flashcards

• ⁠Compound Interest - Chemistry Infographics

• ChemistryTalk - Tutorials / Experiments / Elements / Reference Articles

• Sciencenotes - Periodic Tables / Chemistry Projects and Questions

• Organic Chemistry or Synarchive - Organic Reactions

• CommonOrganicChemistry - Common Reactions / Common Reagents

• name-reaction - List of Name Reactions

• ChemTube3D - Interactive 3D Chemistry Animations

• ChemSpider - Chemical Structures

• Merck Index - Online Merck Index

• Organic Chemistry Data - Organic Chemistry Data

• IGOC - Illustrated Glossary of Organic Chemistry

• Colorado Chemistry Simulations - Chemistry Animations

• Chemical Forums - Chemistry Forums

• ISODN Chemistry - ISODN Chemistry Discord Community

• Arkivoc - Journals

• WebQC Balance Calculator - Chemical Equation Balance Calculator

• Chemexper Chemical Directory - Chemical Directory

• OrgSyn - Chemistry Prep Guides

Periodic Tables

• ⭐ Ptable - Interactive Table

• ⭐ Images-of-elements - Element Images

• ⭐ periodic-table.org or Material Properties - Material / Element Learning Resources

• Atom Animation / GitHub, Graph Overflow or 3D Periodic Table - 3D Visualizations of Atoms

• Atomic - Periodic Table Mobile App

• The Periodic Table Of Elements - Interactive Table

• periodic-table.io - Interactive Table

• Periodic Table App - Interactive Table

• WebElements - Interactive Table

• ⁠Photographic Periodic Table - Image-Based Periodic Table w/ Physical Examples

Biology

• ⭐ Wikispecies or The Catalogue of Life - Species Databases

• ⭐ Animalia or A-Z Animal - Animal Encyclopedia

• ⭐ OneZoom - Tree of Life Explorer

• ⭐ Lost and Found Nature - Rediscovered Animal / Plant Database

• BiologyOnline - Biology Articles

• Science Geek - Biology Study Guides

• LibreTexts Biology - Biology Learning / Guides

• Biodiversity Heritage Library - Biodiversity Research

• Alien - Artificial Life Simulator / GitHub / Video

• Metazooa - Species Connection Game

• ⁠Phenome10K - Biological / Palaeontological 3D Scans

• RecentlyExtinctSpecies - Recently Extinct Species Database

• UniProt - Protein Database

• iNaturalist - Organism Identification

• Ocearch - Track Marine Life

• The Deep Sea - Interactive Deep Sea Life Guide

• Pattern Radio - Listen to Whale Songs

• eBird, Audubon or AllAboutBirds - Bird Species Databases / IDs

• EuroBirdPortal - European Bird Distribution Map

• BirdSounds - Thousands of Bird Sounds Visualized

• Merlin or whoBIRD - Bird Picture / Sound Identification

• Featherbase - Bird Feather Database

• BugGuide - Insect Identification Community

• AntWeb - Ant Species Database

• Macroinvertebrates - Freshwater Macroinvertebrates Atlas

• Life Under the Ice - View Antarctic Microbes

• WhyDoCatsAndDogs…? - Pet Q&A Site

• Backyard Chickens - Chicken Raising Forum

• DinosaurPictures - Dinosaur Info / Images

• Pteros - Pterosaur Database

• WFO - Plant Database

• The Ferns - Tropical Plant Database

• ISODN Biology - ISODN Biology Discord Community

Med School

• 🌐 r/MedicalSchool Wiki - Med School Resources

• ↪️ [Health Resources]

• ⭐ Khan Academy - Physiology / Pathology Overviews

• ⭐ Afratafreeh - Medical Video Courses and Books

• ⭐ Radiopaedia, or Radiology Assistant or Radiology Education - Radiology Resources

• ⭐ ⁠Stop the Bleed - Free First Aid Video Courses / Resources

• MDCalc, MSD Manuals or Epocrates - Medical Reference Sites / Tools

• Geeky Medics, UC San Diego CG or Easy Auscultation - Clinical Guides

• LibreTexts Med - Medical Learning / Guides

• Glass AI - Medical Diagnoses' Training AI

• Get Body Smart or University of Michigan Anatomy - Anatomy Guides

• Zygote Body, AnatomyLearning or Biodigital - 3D Human Anatomical Models

• Inner Body - Anatomy Atlas (2D&3D)

• NIH Print - Biomedical Science 3D Models

• Sectional Anatomy - Cross Sectional Educational MRI / CT Scans

• University of Minnesota Histology or University of Leeds Histology - Histology Guides

• Tulane University Pharmacology - Pharmacology Info & Quizzes

• Antibiotics Summary, 2 - Antibiotics Summary Image

• Healio ECG Review, ECG Library or Litfl - ECG Information

• The ECG Course - ECG Video Course

• ECG Wave-Maven: Self-Assessment Program - ECG Practice

• Hyper Heart - Massey University Heart Animation

• Emergency Medicine Cases - EM Case Index

• EMCrit - Emergency Medicine Information

• DeployedMedicine (signup) or TCCC - Combat Medicine Videos

• EMRap - Emergency Medicine Videos

• Calgary Guide - Disease Pathophysiology / Manifestation Flow-Charts

• MalaCards - Human Disease Database

• Epidemic Calculator - COVID Data

• Pathology Outlines - Pathology Info

• University of Utah Pathology - Pathology Guide

• The Iowa Virtual Slidebox - Pathology Atlas Software

• Nextstrain - Pathogen Evolution Tracking

• ⁠HemOnc - Hematology / Oncology Reference Site

• DermNet - Dermatology Reference Site

• ⁠EyeWiki - Eye Encyclopedia

• Passmedicine - UCAT Practice Questions

• UCAT Score - UCAT Score Converter

• r/medicalschoolanki - Community for Medical Anki Cards

• CRAM - Medical Flashcards

Space

• ⭐ r/Space - Space Subreddit

• ⭐ Space Dashboard - Space Live Stream Dashboard

• ⭐ NASA - National Aeronautics and Space Administration Website / Images / Audio / Documents / APIs / History

• ⭐ March to the Moon, Apollo Image Atlas or ApolloArchive / Flickr - Moon Landing Images

• Interactive Apollo Missions or FirstMenOnTheMoon - Apollo in Realtime

• Marspedia - Mars Wiki

• ESA - European Space Agency Website

• JAXA - Japanese Space Agency Website / Images / Videos

• CSA - Canadian Space Agency Website

• ISRO - Indian Space Research Organization

• Space.com - Space News

• Encyclopedia Astronautica - Space Encyclopedia

• NASA History or NASA Ebooks - NASA Books

• ⁠Cosmos2025, Map of the Universe, Scale of the Universe, AndroidCelestia or SpaceEngine - Interactive Universe Scales

• NASA's Eyes or Celestia - 3D Space Visualizations / Solar System

• ExoplanetExplore - Interactive Exoplanet Visualization

• ExoplanetArchive - Exoplanet Database

• RGV Aerial Photography - Aerial Photography Community / News / X

• TheCMB - 3D Cosmic Microwave Background Model

• ISODN Earth Science - ISODN Earth Science Discord Community

Astronomy

• 🌐 Astronomy Resources - Astronomy Resources

• ⭐ JPL Photojournal or JPL Images - JPL Planetary Image Archives

• ⭐ In The Sky - Astronomy News / Interactive Guides

• ISODN Astronomy & Astrophysics - ISODN Astronomy & Astrophysics Discord Community

• ViewSpace - Space Videos and Digital Interactives

• Planet Globe - Virtual Globes

• Sky Calendar - Astronomy Calendar

• Nights on Earth - Astronomical Event Calendar

• Space Weather News or SpaceWeather - Space Weather Updates / Videos

• SunCalc, ShadeMap or MoonCalc - Sun / Moon Position

• Earth and Moon Viewer - Earth / Moon Latitude and Longitude Viewer

• SDO Dashboard - Live Sun Feed

• ⁠WikiSky, SkyViewer or 100,000 Stars - Interactive Star Visualizations

• CelesTrack - Earth Orbit Visualization

• TheSkyLive or Atlas of Space - Solar System Simulators / Information

• Space Object Comparison - Compare Sizes Of Celestial Objects

• 1 Pixel moon, LightYear or OMG SPACE - Solar System Scale Model

• Astrogeology - Planetary Maps

• AndroidPlanisphere - Android Star Chart

• Aladin - Astronomical Image quar fViewer / Lite Version

• Siril - Astronomical Image Processor

• ESAsky - Public Astronomical Data

• Stellarium-Web or Stellarium / GitHub - Virtual Stellariums

• WorldwideTelescope - Interactive Telescope Data / Home Page / GitHub

• ESA Hubble, SpaceTelescopeLive or HubbleSite - Hubble Telescope Images

• James Webb Space Telescope or ESAWebb - Webb Space Telescope Sites

• Webb Compare - Webb / Hubble Images

• APOD - Daily NASA Astronomy Images

• ESO Images, NASA2Explore or Astrobin - Astronomy Images

• r/SpacePorn or r/Astrophotography - Astrophotography Subreddits

• Meteor Showers - 3D Meteor Shower Visualization

• Live Meteors - Live Meteor Radio Echoes

• Clear Dark Sky - Star Gazing Weather Forecasts

• Dark Site Finder, DarkSkyMap or GoStarGazing - Star Gazing Site Locators

Spacecraft

• ↪️ [Aerospace Engineering Resources]

• ⭐ EarthData - Daily Satellite Replays

• ⭐ Visible Earth, SpaceFromSpace, GOES-16 Satellite Imagery or Sentinel Hub - Satellite Imagery

• ⁠NASASpaceFlight - Launch Livestreams / News / Forum / X

• ⁠Next Spaceflight / X / Discord, nextrocket.space or RocketLaunch - Rocket Launch / Space Flight Trackers

• ⁠Spaceflight Archive - Rocket Launch History / Visualizations / Stats / X

• TonyBela Infographics - Spacecraft / Rocket Infographics / X

• ⁠Ringwatchers - Starship Diagrams / Articles / Community / X / Discord

• Sen - ISS Live Feed + Video Archive / YouTube / X

• ISS In Realtime - Historical ISS Mission Replays / Database

• ISS Sim - ISS Docking Simulator

• Transit Finder, ISS Tracker, Spot The Station or Where The ISS At? - ISS Transit Tracking

• Satellite Map, KeepTrack / GitHub, SGP4 / GitHub, KeepTrackSpace, Find Starlink or Look4Sat - Satellite Orbit Maps / Trackers

• Spacebook - Evaluates / Tracks Satellite Collision Risks & Maneuvers

• Leolabs Space - Low Earth Orbit Simulator

• Orbiter - Spaceflight Simulator / Subreddit / GitHub

• Andegraf Rockets - Rocket Diagrams

Language Learning

Multi-Language

• 🌐 Language Links, LibreTexts Languages, /int/ Guide or r/LanguageLearning Resources - Language Learning Resources

• 🌐 Speechling - Language Learning Tools

• 🌐 LexiLogos - Multi-Language Dictionary Index

• 🌐 Comprehensible Input Wiki - Learn Languages via Comprehensible Input

• ↪️ [Translation Tools]

• ⭐ Language Transfer - Language Learning Lectures

• ⭐ Language Reactor, Dreaming / Subreddit, 2, LLPlayer, Trancy or Easysubs - Learn Languages via Videos

• ⭐ Readlang - Learn a Language via Web Browsing

• Language Learners - Language Learning Forum / Community

• WordReference, Glosbe or Reverso - Translation Dictionary

• Yomitan - Popup Dictionary / Discord

• ReverseDictionary or OneLook Reverse - Search for Words Using Their Meanings

• Languagelearning.site - Language Learning Torrents

• Refold - Language Learning Roadmap

• LingoDeer or [Busuu] (search) - Language Learning Lessons

• Language Drops / [Premium] (search) or OkyDoky - Language Learning App with Thematic Vocab

• Yojik - Language Learning Courses

• DLIFLC - Language Learning Quizzes

• Ba Ba Dum - Language Learning Game

• LanguageGuide - Visual Language Learning

• clozemaster - Context-Based Language Learning

• Sounter, LingoClip or LyricFluent - Learn Languages via Music

• MORT or Textractor - Learn Languages via Games

• Language Roadmap - Foreign Language Media Difficulty Guide

• LearnWithOliver - Language Learning Flashcards

• MyLanguages, VocabTest, My Little Word Land or 50Languages - Grammar / Vocabulary Language Learning

• Vocatra or QuizFlow - Vocabulary Trainers

• Verbix - Verb Conjugator

• ListLang - Most Used Words in Any Language

• Omniglot - Writing System & Language Encyclopedia

• LingYourLanguage or Language Squad - Language Identification Test

• IPA Reader - International Phonetic Alphabet Reader

• Interactive IPA Chart - Learn Phonetic Alphabet Symbols

• LocalLingual or DialectArchive - Listen to Accents

• Plover - Stenography Engine / Discord / GitHub

• TeachMeHebrew - Learn Hebrew

• wehewehe - Hawaiian Dictionary

• Wasona - Toki Pona Learning Site / Minimal Language / Info

• Tōku Reo - Māori Language Learning Show / [Info]

• Itchy Feet Comic - Asian Script Differentiation Guide

Language Exchange

• 🌐 The Language Exchange Network, 2 - Language Exchange Communities / Discord

• InterPals

• Episoden

• Tandem

• Conversation Exchange

• RhinoSpike

• HiNative

• LangX / GitHub

• Polyglot

• ISODN Linguistics - ISODN Linguistics Discord Community

English

• 🌐 Many Things - ESL Resources

• 🌐 ESOL - English Learning Resources

• youglish or YouDict - YouTube Word Pronunciations

• Forvo or HowJSay - Pronunciation Dictionary

• The Internet TESL Journal - Resources for EFL and ESL Teachers

• EFSET - English Proficiency Test

• Spellcheck - English Spelling Game

• Learn English Online, ESLFast, AntiMoon, Oxford Online, ⁠Learn English or Cambridge Online - English Lessons

• EnglishCentral, BBC English, EngVid or Voscreen - English Video Lessons

• Frenglish or English E-Reader - English Learning Books

• elllo or Listening Lab - English Listening Lessons / Practice

• TalkEnglish or Stimuler IELTS Speaking Buddy - Improve Spoken English

• WriteAndImprove - Improve English Writing

• Elsaspeak - Practice English Conversations

• Spanish-English or English Chat - English Learning Community / Discord

• [Jumpinto] or IELTS69 - Cambridge English Practice Tests

• yell0wsuit or OxfordLearnersDictionaries - Word Learning Site

• CEFR Lookup - CEFR Word Level Lookup

• Podcasts in English - English Learning Podcasts

• Langeek or Ozdic - Grammar / Vocabulary Language Learning

• EnglishAccentMap - English Accent Videos / Map

• EnglishBanana - English Learning Worksheets

• Free4Talk - English Learning Communities

Japanese

• 🌐 yame dame, Tatsumoto, GaijinRyman, Nihongo, Japanese Resources or AnimeCards - Learning Resources

• 🌐 Japanese Pitch Accent Resources - Japanese Accent Resources

• ↪️ [Japanese Learning Sites] / [YouTube Channels]

• ↪️ [Dictionaries / Translation]

• ↪️ [Kanji Learning Resources]

• JapaneseWithAnime or Immersion Kit - Learn Japanese via Anime / Manga

• Nihongo con Teppei - Japanese Beginners Podcast

• JapaneseTab - Japanese Learning Extension

• Minato - Japanese Courses

• Memento - Japanese Learning Video Player

• Supernative or LearnNatively - Learn Japanese via Media

• jidoujisho or Manabi - Learn Japanese via Books

• Learn Japanese Grammar or BunPro - Learn Japanese Grammar

• OJAD - Japanese Accent Dictionary

• DelvinLanguage - Fill in Missing Japanese Words

• Jlpt N3 or JapaneseTest4You - Jlpt Exam Questions / Grammar

• GetKanda, Nihonoari or RealKana - Learn Kana

Korean

• ⭐ Learn Korean - Korean Learning Discord

• Read Korean Letters - Learn Korean Characters

• KR Dict - Korean Learning Dictionary

• HowToStudyKorean - Korean Lessons / Practice

• iksi - Korean Classes

• TalkToMeInKorean - Korean Learning Courses

• Sogang or 90 Day Korean - Korean Learning Lessons

• Mirinae - Korean Word Breakdown

• National Institute of Korean Language - Korean Dictionaries / Expression Practice

• ⁠LetsLearnHangul - Hangul Learning

• Hangul Practice - Hangul Recognition Test

• UltimateKorean - Korean Grammar / Vocab Lessons

• KoreanKeyboardLearner - Korean Typing Practice

• Korean Trainer - Korean Numbers & Date Practice

• Hangul - Korean Typing Practice

Chinese

• 🌐 YellowBridge or DigMandarin - Chinese Learning Tools

• 🌐 Cantonese Sheik or SinoSpliceChinese Learning Resources

• ⭐ r/ChineseLanguage - Chinese Learning Community / Discord

• ⭐ Zhongwen - Learn via Classic Chinese Literature

• Train Chinese, ChineseSkill or HelloChinese - Chinese Learning App

• KongLongMandarin, DU Chinese or Dong Chinese - Chinese Lessons

• ArchChinese or Hanzi Grids - Chinese Writing Lessons

• Chinese Character Database

• Stroke Order - Learn Chinese Stroke Orders

• HackingChinese - Chinese Learning Articles

• Cantonese.ca, CantoScrolls or Laoshi - Chinese Vocabulary

• MDBG or zdict or CantoWords - Chinese Dictionaries

• Maorma - Chinese Tone Practice

• The Chairman's Bao - Chinese Reading Practice / News Articles

• Pleco - Chinese Flashcards / Dictionary

• Chinese Flashcards - Chinese Flashcards

• MandoBot - Mandarin Translation / Segmentation

Cantonese

• 🌐 Cantonese Sheik - Cantonese Learning Resources

• Live Lingua Cantonese - Free Cantonese Courses

• EdUHK, OpenCantonese, polyu or eMini_MOOC2k - Cantonese Learning / Practice

• Cantonese.ca, CantoScrolls - Cantonese Vocabulary

• Beginner's Cantonese - Cantonese Grammar Lesson

• CantoWords - Cantonese Dictionary

• HKDict - Contemporary Cantonese-English Dictionary

• Cantonese Character Database

• OnlineCantonese - Cantonese Tone Practice

• CanPro / iOS - Cantonese Pronunciation App

• Jyutping or LearnDuck - Learn Cantonese Romanization System

European

• 🌐 French Comprehensible Input or ⁠Refold French - French Comprehensible Input Resources

• ⭐ StudySpanish or LibreLingo - Learn Spanish

• ⭐ SpanishDict or ⁠Linguee - Spanish Translation Dictionaries

• Spanish-English - Spanish Learning Community / Discord

• SpanishChecker - Spanish Grammar Check

• FluentWithStories - Learn Spanish via Stories

• The French Tutorial - French Learning Tutorials

• ⁠TV5MONDE - French Learning Videos

• LCSpeakFrench - Live French Lessons

• Uusi Kielemme - Finnish Learning

• The People's Dictionary - Swedish Translation Dictionary

German

• 🌐 German Resources - German Language Resources

• ⭐ German Discord - German Learning Community

• ⭐ DW German Course - German Learning Course

• ⭐ VHS Lernportal - German Learning Course / Mobile

• Seedlang - German Learning App

• Linguee / 2 or Dict.cc - German Translation Dictionaries

• VerbForm - Create German Verb Anki Flashcards

South Asian

• 🌐 Urdu Resources or UrduNotes - Urdu Learning Resources

• 🌐 Mga Nagmamarunong's Masterlist - Tagalog Learning Resources

• 🌐 Learn Sanskrit or Sanskrit Studio - Sanskrit Lessons and Tools

• South Asian Languages - South Asian Language Learning

• Urdupod101 - Urdu Grammar Overview / Video

• Rekhta Dictionary - Urdu Dictionary

• UBC Sanskrit Learning Tools - UBC Sanskrit Lessons

• Sanskrit Subreddit / Resources - Sanskrit Resources / Discussion

• Ambuda - Sanskrit Dictionaries / Texts

Sign Languages

• ⭐ SpreadTheSign, Sign Dictionary or SL Dictionary - Multi-Language Dictionaries

• ASL Dictionary, StrongASL, LifePrint, ASLCore or HandSpeak - American Sign Language Dictionaries

• Text to Sign - Convert Text to Fingerspelling in ASL or BSL

• Rochester ASL / LSF - ASL / LSF / Click Dictionary

• SignFlow - Interactive Sign Dictionary / Learning

• ⁠Helping Hands - VR-Based Sign Language Practice / Classes / Discord

• BSL Dictionary, BSL Signbank, MobileSign or Signd - British Sign Language Dictionaries

• Signbank - Australian Sign Language Dictionary

• NZSL - New Zealand Sign Language Dictionary

• SSC - BSL Academic Term Dictionary

• BKS - British Key Word Signs

• International Sign - International Sign Language

• DeafTec or Tachyo - STEM Sign Dictionaries / Search

• Interpreter Services - Specialized ASL Dictionary

• Sign AIP - Sign-Language Learning Videos

• SignSchool - ASL Learning / Dictionary

• The ASL Calendar - ASL Community / Resources

• ⁠SooSL - Create Custom Sign Language Dictionaries

• ASL Learning - ASL Learning Site

• ASL-LEX - ASL Visual Connections Map / Visualization

• DeafVideo - ASL Vlogs + Videos / YouTube Style Site for Deaf Content

• Learn NZSL - NZSL Learning Site

• HandyBSL - Learn / Practice BSL

• SignLearner - Learn ASL or BSL while Browsing Internet / Chromium

• Signs - ASL Learning AI

• Learn BSL in SignWriting

• DPAN, Deaffest (signup), DMDb or Lumo TV - Deaf Entertainment / News

• DMDb or Sign on Screen - Deaf Movie Databases / Sign Language Films / Deaf Actors

Game Learning

Rubiks Cube

• 🌐 Cubing.net - Cubing Tools

• 🌐 [Rubiks Cube Guide] - ⁠Guide to Rubiks Cube / Resources

• ↪️ [Cube Simulators / Solvers]

• ⭐ J Perm, CubeSkills, RubiksTrainer or Easiest Solve - Cubing Tutorials / Practice Resources

• ⭐ CubeDesk or csTimer - Feature-Rich Cubing Timers

• ⭐ SpeedCubeDB - Algorithm Database

• F2L Trainer - F2L Rubiks Trainer

• ⁠crystalcube - CFOP Cross Trainer / Edge Orientation Trainer

• ⁠ZZ Method - Learn / Practice ZZ 3x3 Rubiks Speedrunning Method

• Roux Trainers - Learn Roux Solving Method

• SpeedSolving / Wiki or Ruwix - Cubing Wiki / Community Forum

• World Cube Association - Cubing Competitions & Records

• Cubing Time Standard - Track Your Performance Across WCA Events

• alg.cubing.net, CubeDB, or Tao Yu Trainer - Algorithm Animators / Visualizers

• F2L Trainer - Algorithm-Specific Trainers

• BlindTrainer - Blindfolded Rubinks Trainer

• Hypercubing - Hypercubing Wiki

• Speedcube.app - Cubing Timer (Mobile-Friendly)

• SolveTheCube - Cubing Timer

• qqTimer - Cubing Timer

Chess

• 🌐 Awesome Chess, ⁠Immortal Chess Network, ⁠TheChessDirectory or Chess Resources - Chess Resources

• 🌐 /m/Chess or r/Chess - Chess Subreddits

• 🌐 r/Chess Books - Recommended Chess Books

• ↪️ [Play Chess Online]

• ⭐ Scid vs. PC - Learn / Practice Chess

• ChessGames - Chess Database / Community

• ChessLab - Chess Lessons / Discord

• List Study - Chess Lessons

• Chessable - Chess Lessons

• TheChessWebsite - Learn / Practice Chess

• HerculesChess - Learn / Practice Chess

• Chess Tempo - Chess Practice

• Lucas Chess - Chess Practice

• [Chess Coach] - Chess Coaching App

• ⁠Chess OCR - Multi-Site Digital Chessboard Analysis

• ⁠Shâh Kur - Blind Chess Practice / Improve Board Visualization

• WintrChess, 2 - Chess Game / Move Analysis

• ⁠Chess Analysis - Chess Game / Move Analysis / Discord

• Pawn Appétit - Chess Game / Move Analysis / GitHub

• Chesskit - Chess Game / Move Analysis / Discord / GitHub

• YottaChess - Chess Game / Move Analysis

• ⁠Chessigma - Chess Game / Move Analysis / Discord

• En Croissant - Chess Game / Move Analysis

• Chess Vision - Chess Game / Move Analysis

• ⁠Tactic or Not - Chess Move Analysis / Practice / Discord

• OpeningTree - Download / Visualize Chess Games

• Chess Monitor - Track Chess Analytics

• 2700chess - Live Chess Player Ratings

• 365Chess - Chess History / Lessons

• ChessVariants - 1000+ Chess Variants + Guides

Dungeons & Dragons

• ↪️ [D&D Building Tools] - Map Editors, Campaign Managers, Worldbuilding, etc.

• ⭐ D&D Compendium or RPGBOT - D&D Tools & Learning Resources

• ⭐ 5etools, ⁠DM Screen or The Acaeum - Rules & Content References

• ⭐ D&D Beyond - Official Toolset for 5E

• ⭐ Kobold+ Fight Club - Encounter Builder & Balancer

• Avrae - D&D Automation Discord Bot

• DnD-Books or D&D 5e BR / Use [Translator] - D&D 4E/5E Books

• Cruinne's D&D Reading Room - D&D Worldbuilding Checklist

• ⁠DiceCloud - D&D 5e Character Manager / GitHub

• ⁠DMHeroes - D&D NPC Generator / Classic

• Tetra-cube - Monster Statblock Generator

• GM Binder - 5E Homebrew Document Editors

• D&D Wiki - D&D Homebrew Wiki

Developer Learning

• 🌐 Awesome Courses or Awesome Certificates - Dev Course Indexes

• 🌐 Awesome YouTubers - YouTube Dev Channels Indexes

• 🌐 [ProgrammingLearningResources], r/LearnProgramming Wiki, Programming Learning Index, ⁠awesome-opensource-documents or A-to-Z-Resources-for-Students - Programming Learning Resources

• 🌐 Python Discord - Python Learning Resources

• 🌐 Roadmap - Developer Roadmaps / GitHub

• 🌐 Path to Senior Engineer or Professional Programming - Software Engineer Resources

• ↪️ [Programming Books] - Read / Download Programming Books

• ⭐ freeCodeCamp - Programming / Courses / Interactive

• ⭐ git-cheat-sheet, Git Commands or Git Cheatsheet - Git Command Lists

• ⭐ OpenVim or Vim Hero - Interactive Vim Tutorials

• ⭐ StarSQL, ⁠SQL Practice or Learn SQL - SQL Lessons / Practice

• First Timers Only - Contribution Guide for Beginners

• Beej's Guide to Git or Git Tips - Git Guides / Tips

• Oh My Git! or Oh Shit, Git!?! - Git Learning Game

• Git Tutorial - Interactive Git Tutorial

• Learn Git Branching - Interactive Git Branching Guide

• Git Time - Git Learning Game

• Hack Club - Non-Profit High School Coding Community / Resources / GitHub

• DevToolTips - Developer Tips

• Checki0 - Code Learning Games

• Scrimba or ⁠VittaScience - Interactive Programming Learning

• CloudSkillsBoost - Programming Courses

• ⁠MOOC.fi - Programming Courses

• EggHead - Programming Courses

• TechSchool - Programming Courses / Discord

• ⁠Josh Comeau - Programming Tutorials

• Scratch / Firefox Extension / Chrome Extension / Package Projects / Javascript Converter, 2 / Wiki / Guides / GitHub or ⁠MIT App Inventor - Beginner Programming Learning

• USACO Guide - Competitive Programming Lessons

• Beej's Guides or LearnByExample - Programming Guides

• CodinGame - Games to Practice Coding / Programming

• Advent of Code - Programming Puzzles

• Project Based Learning - Collection of Project-Based Tutorials

• Interview University - Software Engineer Study Guides

• System Design 101 or system-design-primer - System Design Guides

• CLIG - CLI Design Guide / Discord

• LearnToCloud - Cloud Computing Guide

• Swift Playgrounds - Learn Swift UI / Samples

• rTorr - Vim Editor Cheat Sheets

• Vim University - Vim Tips

• VimTip - Vim Editor Tips

• Vim Adventures - Vim Learning Game

• High Assurance Rust - Software Development Guide

• LearningSEO.io or SEO Cheat Sheet - SEO Learning

• SQL PD, SQL Noir, Lost at SQL or SQL Easy - SQL Learning Games

• PostgreSQL Tutorial - PostgreSQL Tutorial

• MySQL Tutorial - MySQL Tutorial

• LearnOpenGL - Learn OpenGL

• Devops Exercises - DevOps Exercises

• 90DaysOfDevOps - Learn DevOps

• Hasura - GraphQL Courses

• systemd-by-example - systemd Learning

• The Linux Kernel - Linux Kernel Development Guides / Archives

• Workbench - Learn / Experiment with Gnome / GitHub

Coding Tutorials

• 🌐 Project Based Learning - Project Based Learning Resources

• ⭐ Build your own X - Advanced Coding Tutorials / Discord

• Programiz, TutorialKart, Hackr.io, Ultimate Programming, GeeksforGeeks or Tpoint Tech / Telegram - General Coding Tutorials

• Guru99 - Software / Web Development

• Codelabs - Project Based Tutorials

• The SHA-256 Project - Learn to Develop SHA-256

• calmcode - Video Tutorials

• zetcode - Programming Notes / Ebooks

• Ebook Foundation - Programming Ebooks

Programming Languages

• ⭐ 30 Days Of Python - Python Programming Challenge

• Hitchhiker's Guide to Python - Python Guide / GitHub

• Typing.io or Silver Dev's WPM - Programming Typing Practice / Sign-Up

• A Byte of Python - Python Guide

• Learn Python - Interactive Python Guide

• FutureCoder - Interactive Python Guide

• ⁠Genepy - Interactive Python Guide

• Learn-Python - Python Playground / Cheatsheet

• CS50 - Python Course

• Tea Press - Python Learning Book

• Learn C - C Tutorials

• C++ Core Guidelines / GitHub or modern-cpp-tricks - C++ Tips

• Learn C++ or StudyPlan - C++ Lessons / Tutorials

• Makefile Tutorial - Makefile Tutorial

• AmigosCode, Java Design Patterns or learncs.online - Java / Kotlin Guides

• Learn Next.js - Next.js Learning Resources

• LearnGo, Tour Go or play-with-go - Learn Go Programming

• Rust Learning - Rust Learning Resources

• Poignant or Try Ruby - Learn Ruby

• Learn Perl - Learn Perl

Web Development

• 🌐 MDN or Web Dev Resources - Web Dev Learning Resources

• ⭐ Odin Project, 2 - Programming / Courses / Interactive / Discord

• ⭐ FullStackOpen - Full Stack Course / Discord

• ⭐ LandChad, 32bit or learn.sadgrl.online - Site Development Guides

• ⭐ Learn to Code HTML & CSS - HTML/CSS Course

• ⭐ PHP: The Right Way, Learn PHP or PHP Tutorial - Learn PHP

• ⭐ JavaScript.info, Patterns.dev or 30 Days Of JavaScript - JavaScript Learning Sites

• ⁠Cloud Cost Handbook - Public Cloud Hosting Cost Guide / GitHub

• Web Dev for Beginners - Web Dev Course

• ⁠Packet.School - Interactive Networking Learning

• Awesome Network Analysis - Network Analysis Learning

• Aquent Gymnasium or CodeAnalogies - Web Dev Tutorials

• Dash - Web Dev Courses

• Web Skills, Codeguage / Discord, web.dev or Encodedna - Web Dev Guides

• Codevolution - Web Dev Video Lessons

• ⁠The Copenhagen Book - Web App Auth Guidelines

• DOM Events - Learn about DOM Events

• WebRTCForTheCurious - WebRTC Guide / GitHub

• backendlore or Design Pattern for Humans - Backend Coding Guides

• backend-challenges - Backend Challenges for Practice

• Backend Cheats - Backend Cheatsheet / Guide

• Full Stack Solana Development Guide - Examples

• STPG - Startpage Creation Guides / Discord

• Web Design in 4 Minutes or Strml - Interactive Web Design Tutorial

• WebGL and GLSL Workshop - Interactive WebGL / GLSL Tutorial

• HEAD - HTML head Element Guide

• css-animation - CSS Animation Tutorial

• 100DayCSS, CSS Challenges or PlayCSS - CSS Challenges

• Codepip, Grid Garden, CSS Battle, CSS Speedrun, CodingFantasy or CSS Diner - CSS Learning Games

• Guess CSS - CSS Guessing Game

• Flexbox Froggy, Flexbox Zombies, FlexboxDefense or KnightsoftheFlexboxTable - CSS Flexbox Learning Games

• DefensiveCSS - CSS Tips

• LearnCSSGrid or GridByExample - CSS Grid Guides

• ReactStudyKit - React Study Tools / Flashcards

• You Don't Know JS or EloquentJavaScript - JavaScript Learning Books

• JavaScript Questions or JavaScriptQuiz - JavaScript Questions for Practice

• 33 JS Concepts - Useful JavaScript Concepts

• You-Dont-Need-jQuery - JavaScript Query Style Events Guide

• Untrusted - JavaScript Learning Game

• HTMLDog - HTML/CSS and JavaScript Tutorials

• Pixactly - Test Pixel Dimension Orientation

Computer Science

• 🌐 CompSciLib - Computer Science Tools

• ⭐ TeachYourselfComputerScience - Computer Science Book Recommendations

• ⭐ Open Source Society University / PT-BR / CN - Computer Science Roadmap / Discord

• ⭐ CS50 - Harvard Computer Science Course / Subreddit / Telegram / Discord / GitHub

• ⭐ NandGame - Computer Building Puzzle

• ⭐ CraftingInterpreters - Scripting Language Implementation Book / GitHub

• ⁠CSRankings - Publication Activity of Computer Science Colleges per Topic

• CS1000 - Computer Science / Software Engineering

• Tech Dev Guide - Computer Science Google Courses

• Big-O Cheatsheet - Computer Science Complexities Cheatsheet

• CSDIY, awesome-low-level-design, awesome-system-design-resources or LearnAIFromScratch - Computer Science Learning Guides

• ProfessorMesser - IT Courses

• Code.org - Computer Science Courses

• cs-video-courses - Computer Science Courses

• Modern Computer Science Curriculum - Computer Science Courses

• CollegeComendium - Computer Science Courses

• Runestone Interactive - Interactive Guides

• Computerphile or CSDojo - Computer Science YouTube Channels

• ApressOpen - Computer Science Books

• Papers We Love - Computer Science Research Papers

• CS Academy - Interactive Computer Science Lessons

• From Nand To Tetris - Computer Building Lesson

• Copetti - In-depth Console Architecture Analysis / GitHub

• Web Browser Engineering - Learn about Browser Engineering

• OSDev Wiki - Operating System Dev Wiki

• Wi is Fi - Wi-Fi Educational Guide

• CPU Land - What Happens when you run Programs

• Computer Science Lecture Links

• Eylenburg - Hardware / Software Comparisons + History

Data Science

• 🌐 Awesome DataScience - Data Science Resources

• 🌐 ⁠Awesome Data Analysis - Data Analysis Resources

• 🌐 Data Engineer Handbook - Data Engineer Resources

• ↪️ [Machine / Deep Learning]

• ⭐ Open Source Society University - Data Science Roadmap / Discord

• Mage - Data Science Pipelines

• Deepnote - Data Science Notebook

• Visualization.info - Learn About Data Visualization

• 365Datascience - Data Science Courses

• Advanced R - R Guide / Solutions

• R Packages - R Packages Guide

• R for Data Science - R Data Science Guide

• Zero to Nix - Nix Learning Guide

• ggplot2: Elegant Graphics for Data Analysis - ggplot2 Guide

• Data Science Ipython Notebooks, Scipy Lectures or Virgilio / GitHub - Learn DataScience

• Data Engineering Zoomcamp - Data Engineering Course

• Data Engineering Practice Problems - Data Engineering Practice

• Learn to Make Netflix Clone

• Zasper - Data Science IDE

Data Structures

• ⭐ Leetcode - Coding Practice

• ⭐ Leetcode Tools - Solutions, 2, 3 / Company Questions, 2, 3 / Animations / Anki Cards / Videos / Resources / Analytics

• NeetCode - Coding Interview Practice

• algonds - Coding Practice

• Codility - Coding Practice

• ProjectLearn - Coding Practice

• LintCode or CodeWars - Coding Practice

• Coding Questions or Skilled.dev - Coding Interview Questions

• BuildBox, DevPost, HackTheEarth, EMKC, AtCoder or Toph.co - Hackathon / Challenge Communities

• Rosetta Code, CodeAbbey, Kattis or Coding Problems - Coding Problems / Solutions

• Exercism, HackerRank or CS Circles - Programming Lessons

• Hello Algo - Data Structures and Algorithms Course

• Algorithms-Cheatsheet-Resources - Code Algorithm Cheat Sheets

• algorithms - Code Algorithms & Data Structures Tutorials

• JavaScript Algorithms - Algorithms and Data Structures in JavaScript

• VisuAlgo - Data Structures & Algorithm Animations

• Algorithm Visualizer, ⁠Staying or Sorting Algorithms Visuallizer / GitHub - Visualize Code Algorithms

• CSES Problemset - Collection of Algorithmic Programming Problems

• Memery Spy - Learn how Bytes Represent Variables

UI / UX

• design.tips or Utopia - Design Tips

• HackDesign or Sky Design - UI / Webdesign Courses

• 50 UI Tips - UI / UX Design Book

• Can't Unsee - UI Design Test

• UXTools or UXMovement - Learn UX Design

• SitePoint - UX Design Courses & Books

• delightful humane design - Humane Design Resources

• Laws of UX - Maxims / Principles for UI Designers

• Deceptive Patterns - Deceptive User Experience Examples

• UI Coach - UI Design Challenge Generator

• HTML Dog - Frontend Tutorials & Examples

• FrontEndMentor or Frontend Challenges - Frontend Design Challenges

• Frontend Learning Kit - Frontend Learning Index

• Frontend Bootcamp - Frontend Workshop

Cybersecurity

• 🌐 Free Cyber Resources, BlueTeam Tools or Applied Cybersecurity - Cybersecurity Learning Resources

• 🌐 Official Cybersecurity YouTube Channels

• 🌐 CTF Sites, echoCTF.RED, CTF101, picoCTF, CTF Beginners Guide, CTFtime or CTFLearn - CTF Resources / Guides

• 🌐 Awesome Sites to Test On - Cybersecurity Practice Sites

• ⭐ HackTricks - Practical Penetration Testing & Security Auditing Tips

• ⭐ PortSwigger Academy - Web Security Learning

• ⭐ OWASP Cheatsheet - Application Security Guide

• Hackers101, SmashTheStack or WebHacking - Cybersecurity Challenges

• Skills for All or 90DaysOfCyberSecurity - Cybersecurity Courses

• TryHackMe, HackTheBox or OpenSecurityTraining2 - Cybersecurity Lessons

• Addielamarr, Cyber Talent Kids or Teach Yourself Info Sec - Learn About Cybersecurity

• pwn.college - Cybersecurity Practice

• OverTheWire - Cybersecurity Learning Game

• Hacksplaining - Developer Security Lessons

• MicroCorruption - Learn Reverse Engineering / Cybersecurity

• x86re or Reverse-Engineering - Reverse Engineering Guides

• CrackMyApp or crackmes / Discord - Reverse Engineering Challenges

• ⁠Reverse Engineering Academy - Interactive Reverse Engineering Lessons

• ⁠Nightmare - Binary Exploitation Defense / Reverse Engineering Course

• John Hammond - Cybersecurity YouTube Tutorials

• Pentesting Bible or Juice Shop - Learn Pentesting

• How DNS Works - Learn DNS

• How DNSSEC Works - Learn DNSSEC

• CryptoPals or Overview of Cryptography or cryptohack - Cryptography Learning

• ⁠CrypTool - Interactive Cryptology Learning / Puzzles

• How HTTPS Works - Learn HTTPS

Game Development

• 🌐 Awesome-Gamedev, Learn Gamedev, MagicTools, Newgrounds Wiki: Game Dev Resources or The VG Resource - Learning Resources

• ↪️ [Game Dev Tools]

• ⭐ Brackeys - Game Dev Tutorials

• ⭐ r/gamedev - Reddit Community

• ⁠20 Games Challenge - Beginner Game Dev Challenges

• CodeWisp - Interactive Beginner Game Dev Learning

• Amit's Game Programming - Game Programming Guide

• [GameProgramBooks] - Game Programming Books

• PICO-8 - Basic Game Dev Concepts / Web Version

• From Zero To Hero - 2D Game Dev Book

• Web Game Dev - Game Dev Guides / Discord

• SebastianLague - Game Dev Tutorials

• Level Design Book - Level Design Guide / Book

• Trig for Games - Trigonometry Lessons for Games

• Shadertoy - Real-Time Shader Dev Platform

• Game Math - Mathematics Lessons for Game Devs

• Graphics Workshop - Learn Computer Graphics

• The Book of Shaders - Fragment Shaders Guide

• EmuDev - Emulator Development Information / Discord

• ⁠EmuDevs - NES Emulator Development Learning Game

• QB64SourceCode - QB64 Game Programming Tutorials

• 8bitWorkshop - Retro Game Programming Tutorials

Exam Prep

• 🌐 IBResources - International Baccalaureate Resources

• FreeOnlineTest, ⁠CrackAP, Examveda, SaveMyExams, Aglasem, MajorTests or Alloprof - Exam Practice Tests

• IndiaBIX - Aptitude Tests

• Science Career General - PhD / STEM Career Study Guides

• DoubtNut - Exam / Solutions / Help / Ad-Bypass

• Papers.Xtreme - Test Revision Notes & Answers

• AllFreeDumps - Exam Dumps

• ⁠Get Sum Math - GED Prep / Practice

• CaieFinder - Previous Cambridge Test Answers

• [Exam Downloader] - Exam Download Tool

• ITExams - IT Exam Collection

• Pearson's AP Universe - AP Exam Guides / Community / Discord

• CrackAP - Practice AP Exams

• r/APStudents Course Survey - AP Exam Comparison Spreadsheet

• r/CATpreparation - CAT Test Prep / Discord

• Revisely - GCSE Exam Help

• ⁠free-clep-prep or ModernStates - Free CLEP / DSST Exam Prep

• ⁠NCERT Books - NCERT Practice Books

• nzqa.toasting - Download NZQA Past Papers

• CatchaScience, IGCSEResources, r/IGCSE or ZNotes - IGCSE Study Notes / Resources

• IGCSE Papers, RevisionScience or Physics & Maths Tutor - Download Past GCSE / IGCSE Papers

• anthropology - UPSC Telegram Channel

• GaryChamberlainLectureNotes - Econometrics Lecture Notes

SAT Testing

• 🌐 Digital SAT Resources - SAT Resources

• ⭐ OnePrep - SAT Practice Exams / Questions

• SAT Slayer, 2 - SAT Practice Exams / Questions

• ⁠Mcelroy Tutoring - SAT Practice Exams / Questions

• ⁠Sat DB - SAT Practice Exams / Questions / Requires Sign-Up

• DSATuz - SAT Practice Exams / Questions / Telegram

• The SAT: Practice Tests - SAT Practice Exams / Questions

• SAT Question Bank - SAT Practice Exams / Questions

• SATArchive - Previous SAT Test Archive

• [SAT Reading] - Suggested SAT Reading

• SAT_Files_discussion - SAT Exam Discussion

JEE / NEET

• 🌐 r/JEENEETards Index - Guides / Study Material

• ⭐ PhysicsWallah - JEE Lessons / YouTube

• ⭐ PirateHive - Guides / Study Material

• ⭐ ExamSide - PYQ Solutions

• JEE Hub - JEE / NEET PYQs

• JEE Books or JEEBooksPDF / Telegram - JEE Books Archives

• Genetry or Lec.Branch - JEE Lectures