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Table of Contents

► Documentaries
► Courses

▷ Streaming
▷ Downloading
▷ Torrenting

► Learning Sites

▷ Skills / Hobbies
▷ Interactive Learning
▷ History
▷ Mythology / Folklore
▷ Philosophy
▷ Music
▷ Art / Editing
▷ Geography / Sociology
▷ Chess
▷ Quote Indexes
▷ Virtual Tours

► Science / Math

▷ Physics
▷ Space
▷ Math
▷ Engineering
▷ Chemistry
▷ Biology
▷ Med School
▷ Periodic Tables

► Language Learning

▷ Multi-Language
▷ Language Exchange
▷ English
▷ Japanese
▷ Korean
▷ Chinese
▷ European
▷ German
▷ South Asian
▷ Other Languages

► Developer Learning

▷ Programming Languages
▷ Web Development
▷ Computer Science
▷ Data Science
▷ Data Structures
▷ UI / UX
▷ Cybersecurity
▷ Game Development

► Educational Tools

▷ Study / Research
▷ JEE / NEET
▷ Calculators
▷ Dictionaries / Thesaurus
▷ Encyclopedias
▷ Wikipedia Tools

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► Documentaries

⭐ IHaveNoTV
⭐ DocumentaryArea / Remove Watermark (or use PIP)
⭐ DocPlus
⭐ 1337x Documentaries / Torrent
LearnOutLoud
Top Documentary Films
Media Burn Archive
DocumentaryHeaven
ARTE
Documentary Network
Documentary Storm
Documentary Tube
Rocumentaries
WatchDocumentaries
PBS
Nat Geo
Folkstreams
Films For Action
/r/Documentaries
Open-Video
Videoneat
MVGroup

► Courses

▷ Streaming

🌐 Awesome Courses - Courses
🌐 Limnology - Educational YouTube Channels
↪️ Udemy Tools / Coupons
↪️ Chemistry Lessons
⭐ Coursera - Courses / Financial Aid / Downloader
⭐ edX - Courses / Downloader
⭐ MitOpenCourseWare - Courses
⭐ Khan Academy - Courses / Downloader / Solver
⭐ Class Central - Search for Courses
CourseBuffet or Course CSE - Multi-Site Course Search
Git.ir - Courses
OpenLearn - Courses
Alison - Courses
EbookFoundation Courses - Courses
OpenCulture - Courses
DigitalGarage - Google Courses
Hillsdale College - Courses
OpenHPI - Courses
OLI - Courses
LearnOutLoud - Documentaries / Courses
Video Lectures - Lectures
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
↪️ Course Megadrives
⭐ TutFlix - Courses / Drives / Sign-Up Opens Fridays
⭐ HackNation - Courses
⭐ tut4dl - Courses
⭐ Course Busters - Course Busters Access
Revival - Courses
FreeEducationWeb - Courses
OneHack - Courses / Telegram
FreeCourseSite, 2 - Courses
technet24 - Courses
AfraTafreeh - Courses
learningDL - Courses / Leech Required
LinkedIn_Learning - LinkedIn Courses
CertCommunity - IT Cert Courses
firerip - Fireship.io Course Downloader

▷ Torrenting

Note - Remember to get a VPN before torrenting.

Course Club - Courses
FreeCourseSite - Courses
Docspedia - Courses / Sign-Up Required

► Learning Sites

🌐 The Free Learning List - Learning Resources
🌐 Learn Anything - Learning Resource Search / Free Method
🌐 Wakelet - Learning Resources
🌐 WISC - Learning Resources
🌐 OpenCulture - Learning Resources
🌐 OSSU - Learning Resources / Discord
🌐 Awesome Educational Games - Educational Games Index
🌐 IQ Tests - IQ Test Sites / Accuracy Ratings
↪️ Ebook Sites
↪️ Survival / Prepping
↪️ Science News
⭐ /r/coolguides or coolguid.es - Guides & Tutorials
⭐ /r/educationalgifs - Learn with GIFs
⭐ /r/explainlikeimfive - Have Anything Explained Very Simply
⭐ The Punctuation Guide - Punctuation Guide
media.ccc.de - Educational Presentations
Ted Talks - Inspiring and Educational Talks
Stack Exchange or Quetre - Q&A Communities
ISODN - International Science Olympiads Discord Community
AFAIK - Learning Map / Discord
Open Educational Resources - How to Search for Open Educational Resources
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
AirVectors or PlaneSpotters - Aircraft Indexes / Images
ShipSpotting - Ship Index / Images
HerbologyY - Herbology / Telegram
Alchemy Forums - Alchemy Forum
P2PU - Join Learning Groups Using Free Courses

▷ Skills / Hobbies

↪️ Typing Tests / Games
Rookie Road - Sport Guides
Make it Yourself - 1000 DIY Projects / Video
Animated Knots or NetKnots - Learn to Tie Knots
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
HypnosisChatBooks - Hypnosis / Telegram
Erowid - Psychoactive Information
PsychonautWiki - Psychonautics Wiki
Shroomery - Magic Mushroom Forum

▷ Interactive Learning

⭐ PhET, Cognito, Academo - Interactive Lessons
Explorabl.es, MinuteLabs, Wikiversity or Learnamic - Quizzes / Guides / Games
LabXchange, JavaLab or EduMedia - Interactive Science Simulations
Matthen - Math & Science Animations

▷ History

↪️ History Books
↪️ Historical Maps - Map Resources
⭐ Historic Films or National Film Preservation Foundation - Historic Footage / Films
⭐ Histography or Oldest - History Timelines
⭐ MorbidKuriosity - Dark History, Conspiracies, Crime, Myths, etc.
HistoryMaps - Learn History Visually
Smithsonian Institution Archives or RareHistoricalPhotos - Historical Photos / Documents
Imperial War Museums - Historic War Footage
Museo - Museum Search
Wonderous - Learn About Ancient Structures
Shorpy - Historical Photos
EyewitnesstoHistory - Historical Eyewitness Testimonies
ManuscriptMiniatures - Medieval Manuscript Images
BlackPast - African History Encyclopedia
Athena - Greek History Encyclopedia
Mission US - American History Learning Games
OnThisDay or Curiosity Of The Day - What Happened on Specific Days
Royal Constellations - Royal Family Ancestral Visualization
Sciphilos or Calculating Empires - Historical Discovery 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
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, Reasoned, TheDailyIdea or PhilosophyBasics - Philosophy Resources / Learning
Wireless Philosophy - Philosophy Videos
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
RationalWiki - Pseudoscience Refutation Wiki
Advanced Logic Calculators
Kialo - Debates / Discussion
WikEnigma - 'Known Unknowns' Wiki
The Trolley Problem Game - The Trolley Problem
Social Engineers - Social Engineering Guides

▷ Music

🌐 Music Education Masterlist
🌐 Awesome Music Theory - Music Theory Resources
🌐 Music Outfitters - Music Services / Information
↪️ Sheet Music / Notation
⭐ Muted, Open Music Theory / 2, Chromatone, Teoria, SimplifyingTheory, LightNote or Music Theory - Music Theory
AudioZ - Audio Courses / Forum
Helio or NoteHeads - Music Composition Tools
MusicKit or Tone Generator - Metronome, Tuner & Tone Generators
Tuner Ninja - Instrument Tuner
Circle of Fifths - Visualize Notes, Cords & 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 Musica - Music-Making Lessons
Midiano / Discord, Piano Trainer, Chord Nebula, sightread or PianoCheetah - Piano Practice / Learning
Keyboard Connect - Keyboard Tutoring App
TrueToneGuitar, Songsterr / Premium, FAChords or ChordBook - Guitar Tools
FretFlip, Oolimo, StringScales, My Fretboard Trainer 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, Croquis Cafe, 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, Art Fundamentals or Circle Line Art - Art Video Tutorials
online-courses - Art / Design Courses
TutsPlus - Creative Courses
Curriculum for the Solo Artists - Self-Taught Artist Curriculum / PDF Version / Gallery Version, 2
DoArtDaily - Daily Art Challenges
Character Design References - Character Design Visual Library
FloobyNooby, Let's Learn Storyboarding, JMMStoryboardTips or A Guide to Storyboards - Storyboard Guides
MangaMaterials, animesijyuku or DoKiDoKiDrawing - Manga Video Tutorials / X / Pixiv
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
The Book of Shaders - Fragment Shaders Guide
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 - Learn to Draw
Drawingbooks.org - Old Drawing Books
Line of Action, Timed Figure Poses, LoveLifeDrawing or Daily Life Drawing Sessions - Figure Sketch Tools / Lessons
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
The Dimensions Of Colour - Colour Theory Guide
DevinKorwin Color Guide - Color in Paintings Guide
Draw Mix Paint - Learn Oil Painting
Painting Demos - Painting Demonstrations
CG_Hacker, cg_tuts or cgreferenceshub - CG Tutorials
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, Ozymandias, 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
Maps.com - Interesting / Educational Maps
LizardPoint, Worldle, Learn World Map, Seterra or Teuteuf - Geography Guessing / Quizzes
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 - Data Visualizations
Global Consciousness Project - Real-Time Global Consciousness Data
If It Were My Home, GlobalEdge or MyLifeElsewhere - Country Data Comparisons
WorldPoverty - World Poverty Data
Dollar Street - Compare Homes by Country / Income
Unequal Scenes - Scenes of Inequality Around the World
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
Hate on Display - Hate Symbol Database

▷ Chess

🌐 Awesome Chess, ImmortalChess101, Chess Domi or Chess Resources - Chess Resources
🌐 /m/Chess or /r/Chess - Chess Subreddits
🌐 /r/Chess Books - Recommended Chess Books
⭐ 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
Chessercise - Chess Game / Move Analysis
Game Report - Chess Game / Move Analysis
Decode Chess - Chess Game / Move Analysis
YottaChess - Chess Game / Move Analysis
En Croissant - Chess Game / Move Analysis
Chess Vision - Chess Game / Move Analysis
OpeningTree - Download / Visualize Chess Games
Chess Monitor - Track Chess Analytics
2700chess - Live Chess Player Ratings
Bill Wall's Chess Page or 365Chess - Chess History / Lessons
ChessVariants - 1000+ Chess Variants + Guides

▷ Quote Indexes

▷ Virtual Tours

🌐 Virtual Museum Resources - Online Museums
⭐ CityHop, Travel Remotely, 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
Hashima Island - Hashima Island Virtual Tour
Basilica Viewer - St. Peter’s Basilica Tour
360Cities, Zhijianshang or Airpano - 360 Images / Videos
Smithsonian 3D - Smithsonian 3D Digitization Museum
The Bayeux Tapestry - Bayeux Tapestry 3D Digitization

► Science / Math

▷ Physics

🌐 Physics Saviary or Falstad - Physics Tools
↪️ Math and Physics Books
⭐ phys - Physics News / Articles
⭐ 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
TIB AV-Portal - Science Videos
PhysicsTravelGuide - Physics Explanations
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
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
Electromagnetic Radiation Spectrum Chart

▷ Space

🌐 Astronomy Resources - Astronomy Resources
↪️ Math and Physics Books
⭐ /r/Space - Space Subreddit
⭐ Space Dashboard - Space Live Stream Dashboard
⭐ EarthData - Daily Satellite Replays
⭐ Visible Earth, GOES-16 Satellite Imagery or Sentinel Hub - Satellite Imagery
⭐ NASA - National Aeronautics and Space Administration Website / Images / Audio / Documents
⭐ JPL Photojournal or JPL Images - JPL Planetary Image Archives
⭐ March to the Moon, Apollo Image Atlas or ApolloArchive / Flickr - Moon Landing Images
⭐ In The Sky - Astronomy News / Interactive Guides
ViewSpace - Space Videos and Digital Interactives
ESA - European Space Agency Website
Space.com - Space News
Encyclopedia Astronautica - Space Encyclopedia
NASA History or NASA Ebooks - NASA Books
NSSDCA - NASA Space Science Mission Data
Planet Globe - Virtual Globes
ISS Sim - ISS Docking Simulator
Transit Finder, ISS Tracker, Spot The Station or Where The ISS At? - ISS Transit Tracking
Leolabs Space - Low Earth Orbit Simulator
Orbiter - Spaceflight Simulator / GitHub
Satellite Map, KeepTrackSpace, Find Starlink or Look4Sat - Satellite Orbit Maps / Trackers
Sky Calendar - Astronomy Calendar
Nights on Earth - Astronomical Event Calendar
Space Weather News or SpaceWeather - Space Weather Updates / Videos
Andegraf Rockets - Rocket Diagrams
nextrocket.space or RocketLaunch - Rocket Launch Trackers
Interactive Apollo Missions or FirstMenOnTheMoon - Apollo in Realtime
SunCalc, ShadeMap or MoonCalc - Sun / Moon Position
Earth and Moon Viewer - Earth / Moon Latitude and Longitude Viewer
SDO Dashboard - Live Sun Feed
CelesTrack - Earth Orbit Visualization
TheSkyLive or Atlas of Space - Solar System Simulators / Information
1 Pixel moon, LightYear or OMG SPACE - Solar System Scale Model
Marspedia - Mars Wiki
ExoplanetExplore - Interactive Exoplanet Visualization
ExoplanetArchive - Exoplanet Database
Space Object Comparison - Compare Sizes Of Celestial Objects
Astrogeology - Planetary Maps
Map of the Universe, Scale of the Universe, AndroidCelestia or SpaceEngine / Old Versions - Interactive Universe Scales
NASA's Eyes or Celestia - 3D Space Visualizations / Solar System
100,000 Stars - Interactive 3D Star Visualization
AndroidPlanisphere - Android Star Chart
Aladin - Astronomical Image Viewer / Lite Version
Siril - Astronomical Image Processor
ESAsky - Public Astronomical Data
Stellarium-Web or Stellarium - Virtual Stellariums
WorldwideTelescope - Interactive Telescope Data / Home Page / GitHub
ESA Hubble, SpaceTelescopeLive or HubbleSite - Hubble Telescope Images
Webb Space Telescope, 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
TheCMB - 3D Cosmic Microwave Background Model
ISODN Astronomy & Astrophysics - ISODN Astronomy & Astrophysics Discord Community
ISODN Earth Science - ISODN Earth Science Discord Community

▷ 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
Wolfram MathWorld, Encyclopedia Of Math or nLab Math - Mathematics Encyclopedias
Red Blob Games or Mathspad - Interactive Math Sites
Mathcha, Corca or Math Editor - Online Math Editors
SequenceDB - Sequence Machine
OEIS - Encyclopedia of Integer Sequences
Giac/Xcas - Algebra System
Algebra Rules - Learn Algebra Rules
CalculusMadeEasy - Learn Calculus
CLP - Calculus Textbooks
Mathematics Roadmap - 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, SchoolYourself, mathhelp, MathPortal, Math Planet or CoolMath - Math Lessons / Practice
CoolMathGames - Math Games
Cut The Knot - Math Equations / Problems
IXL Learning - Math Practice / Quizzes
Pauls Online Math Notes - Math Practice / Guides
ParkMath or FreeMathHelp - Math Guides
ISODN Math - ISODN Math Discord Community
Fourier Transform - Interactive Fourier Transform Guide
ProofWiki - Mathematical Proofs Wiki
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
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
Formulia - Engineering Formulas / Tools
Sanfoundry - Engineering Questions & Answers
CESDB - Engineering Software
How a Car Works - Car Mechanics / Automotive Engineering Guides
Robot Shop - Robotics Forum
VisRo Robotics - Robotics Learning / Discord
Humanoid Robots Wiki - Robotics Courses Index
Diode - 3D Hardware Simulator
Wokwi - Arduino / ESP32 Board Simulators
HDLBits - Learn Circuit Design
EasyEDA or LibrePCB - Electronic Circuit Design Tools
Circuit Steps - Circuit Analysis Tool
BatteryUniversity - Learn About Batteries
Electronics Tutorials or Instrumentacion - Electronic Guides
KiCad - Schematics Editor / PCB Creator / SPICE Integration
/m/engineering - Engineering Multireddit

▷ Chemistry

🌐 Wolfram Alpha Chemistry - Chemistry Calculators / Tools
↪️ Chemistry Lessons
⭐ Lab Safety Guide / Intro
⭐ LibreTexts Chemistry - Chemistry Texts
⭐ Internet Chemistry - Chemistry Search Index
Chemistry Basics - Basics of General, Organic, and Biological Chemistry
ChemicalAid or Chemequations - Chemistry Calculators / Element Tables
QuickChem - Chemistry Calculator
PubChem, MOTM, NIST or EssentialChemicalIndustry - Chemistry Wikis
ChemistrySteps or DocBrown - Chemistry Practice / Guides
Cliffnotes Chemistry / Organic Chemistry I / Organic Chemistry II, Chem Wiki or chemguide - Study Guides
ReactionFlash / iOS - Chemical Reaction Flashcards
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

▷ 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
Biodiversity Heritage Library - Biodiversity Research
Alien - Artificial Life Simulator / GitHub / Video
Metazooa - Species Connection Game
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
MDCalc, MSD Manuals or Epocrates - Medical Reference Sites / Tools
Geeky Medics, UC San Diego CG or Easy Auscultation - Clinical 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 - Antibiotics Summary Image
ECGPedia, 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
EMRap - Emergency Medicine Videos
Calgary Guide - Disease Pathophysiology / Manifestation Flow-Charts
Radiopaedia, Radiology Assistant or Radiology Education - Radiology Resources
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
Passmedicine - UCAT Practice Questions
UCAT Score - UCAT Score Converter
/r/medicalschoolanki - Community for Medical Anki Cards
CRAM - Medical Flashcards

▷ Periodic Tables

⭐ Ptable - Interactive Table
⭐ Images-of-elements - Element Images
⭐ periodic-table.org or Material Properties - Material / Element Learning Resources
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

► Language Learning

▷ Multi-Language

🌐 Language Links, /int/ Guide or /r/LanguageLearning Resources - Language Learning Resources
🌐 Speechling - Language Learning Tools
🌐 LexiLogos - Multi-Language Dictionary Index
↪️ Translation Tools
⭐ Language Transfer - Language Learning Lectures
⭐ Language Reactor, LLPlayer, Trancy or Easysubs - Learn Languages via Videos
⭐ Readlang - Learn a Language via Web Browsing
Duolingo / Tips, Memrise, LingoDeer or Busuu - Language Learning Lessons
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
Comprehensible Input Wiki - Learn Languages via Comprehensible Input
HelloTalk - Learn Languages via AI Conversation
Languagelearning.site - Language Learning Torrents
Refold - Language Learning Roadmap
Language Drops - Language Learning App / Premium
10,000 Sentences - Language Learning App
Yojik or Pimsleur - 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
Hey! Lingo or 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
Alphabetpedia - Multiple Language Alphabets
wehewehe - Hawaiian Dictionary

▷ Language Exchange

🌐 The Language Exchange Network, 2 - Language Exchange Communities / Discord
InterPals
Episoden
Tandem
Conversation Exchange
RhinoSpike
HiNative
LangX
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 or Cambridge Online - English Lessons
EnglishCentral, 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
yell0wsuit or OxfordLearnersDictionaries - Word Learning Site
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, 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
⭐ Animelon, 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
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 SinoSplice - Chinese Learning Resources
↪️ Mandarin Chinese Books
⭐ /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
Stroke Order - Learn Chinese Stroke Orders
HackingChinese - Chinese Learning Articles
Cantonese.ca, CantoScrolls, Laoshi or TofuLearn - Chinese Vocabulary
MDBG or Pleco - 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 / Segementation

▷ European

⭐ StudySpanish or LibreLingo - Learn Spanish
SpanishDict - Spanish Translation Dictionary
SpanishChecker - Spanish Grammar Check
DreamingSpanish - Spanish Learning Videos
The French Tutorial - French Learning Tutorials
LCSpeakFrench - Live French Lessons
Uusi Kielemme - Finnish Learning

▷ 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

▷ Other Languages

TeachMeHebrew - Learn Hebrew
ASL Dictionary, BSL Dictionary, SignSpaces or HandSpeak - Learn American Sign Language
SignLearner - Learn Sign Language while Browsing Internet
Signs - Sign Language Learning AI
Learn BSL in SignWriting
LingYourLanguage or Language Squad - Language Identification Test
LocalLingual or DialectArchive - Listen to Accents
Interactive IPA Chart - Learn Phonetic Alphabet Symbols
IPA Reader - International Phonetic Alphabet Reader
Asian Script Differentiation Guide
Omniglot - Writing System & Language Encyclopedia
Plover - Stenography Engine / GitHub / Discord

► Developer Learning

🌐 Awesome Certificates - Dev Course Indexes
🌐 Awesome YouTubers - YouTube Dev Channels Indexes
🌐 ProgrammingLearningResources, /r/LearnProgramming Wiki, Programming Learning Index or A-to-Z-Resources-for-Students - Programming Learning Resources
🌐 Python Discord - Python Learning Resources
🌐 Path to Senior Engineer or Professional Programming - Software Engineer Resources
↪️ Programming Books - Read / Download Programming Books
↪️ Programming / Coding Tutorials
⭐ freeCodeCamp - Programming / Courses / Interactive
⭐ Git Cheatsheet or Git Commands - Git Command Lists
⭐ OpenVim or Vim Hero - Interactive Vim Tutorials
⭐ StarSQL or Learn SQL - SQL Lessons
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 Version Control System Learning Game
DevToolTips - Developer Tips
Roadmap - Developer Roadmaps / GitHub
Checki0 - Code Learning Games
Scrimba - Interactive Programming Courses
CloudSkillsBoost - Programming Courses
EggHead - Programming Courses
TechSchool - Programming Courses / Discord
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
Vim Golf - Vim Challenges
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
Approaching (Almost) Any Machine Learning Problem - Machine Learning Problem-Solving Book
Deep ML - Solve Machine Learning Problems
AI-For-Beginners, Beginner Guides or HF Learn - Machine Learning Guides
ML Course Notes - Machine Learning Course Notes
100-Days-Of-ML-Code, DeepLearningWizard, DeepCourse, UFLDL, IAILab, Handson ML3, DeepLearning.ai or Practical Deep Learning - Machine / Deep Learning Courses
minitorch - Machine Learning Engineering Course Code
ML YouTube Courses or Deep Learning Drizzle - Machine Learning Courses on YouTube

▷ Programming Languages

30 Days Of Python or Hitchhiker's Guide to Python - Python Guides
A Byte of Python, Hypermodern Python, Learn Python, Learn-Python or Magical Universe - Learn Python
FutureCoder, CS50, python-mastery or A Practical Introduction to Python - Python Courses
Tea Press - Python Learning Book
Learn C - C Tutorial
C++ Core Guidelines - C++ Best Practices Guidelines / GitHub
Learn C++ - C++ Lessons / Tutorials
StudyPlan - C++ Lessons / Tutorials
modern-cpp-tricks - C++ Tips
Makefile Tutorial - Makefile Tutorial
AmigosCode - Java / Kotlin Tutorials
learncs.online - Learn Java / Kotlin
Java Design Patterns - Java Guide
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
⭐ 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
Web Dev for Beginners - Web Dev Course
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
Local-First Web - Local-First Web Development Guide
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
HTML DOM - Learn DOM Manipulation
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
⭐ NandGame - Computer Building Puzzle
⭐ CraftingInterpreters - Scripting Language Implementation Book / GitHub
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
CS50 - Harvard Computer Science Course
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
🌐 Data Engineer Handbook - Data Engineer Resources
↪️ Machine Learning Resources
⭐ Open Source Society University - Data Science Roadmap / Discord
Mage - Data Science Pipelines
Deepnote - Data Science Notebook
Data Science Resources - Data Science Learning Resources
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 / Company Questions, 2, 3 / Animations / Anki Cards / Videos / Resources
⭐ NeetCode - Coding Interview Practice
algonds - Coding Practice
Codility - Coding Practice
ProjectLearn - Coding Practice
LintCode or CodeWars - Coding Practice
CyberType - Increase Coding Speed
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 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
Learn UI Design - UI Design Course
50 UI Tips - UI 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 or Front Tips - Frontend Tutorials & Examples
FrontEndMentor, Phuoc 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
🌐 CTF Sites, echoCTF.RED, CTF101, picoCTF, CTF Beginners Guide, CTFtime or CTFLearn - CTF Resources / Guides
⭐ HackTricks - Practical Penetration Testing & Security Auditing Tips
⭐ OWASP Cheatsheet - Application Security Guide
Hackers101, SmashTheStack, WebHacking or DefendTheWeb - Cybersecurity Challenges
Skills for All or 90DaysOfCyberSecurity - Cybersecurity Courses
Sectube - IT Security Event Recordings
TryHackMe, Hack The Box 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
John Hammond - Cybersecurity YouTube Tutorials / Discord
Pentesting Bible or Juice Shop - Learn Pentesting
How DNS Works - Learn DNS
How DNSSEC Works - Learn DNSSEC
sha256_project, CryptoPals or cryptohack - Cryptography Learning
How HTTPS Works - Learn HTTPS
The SHA-256 Project - Learn to Develop SHA-256

▷ Game Development

🌐 Awesome-Gamedev, Learn Gamedev, MagicTools, Newgrounds Wiki: Game Dev Resources or The VG Resource - Learning Resources
⭐ develop.games - Game Dev Guides
⭐ Brackeys - Game Dev Tutorials
⭐ /r/gamedev - Reddit Community
Amit’s Game Programming - Game Programming Guide
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
Trig for Games - Trigonometry Lessons for Games
Game Math - Mathematics Lessons for Game Devs
Graphics Workshop - Learn Computer Graphics
QB64SourceCode - QB64 Game Programming Tutorials
8bitWorkshop - Retro Game Programming Tutorials

► Educational Tools

🌐 nanoHUB - Nanotechnology Tools
🌐 5th STAAR Resource Curation - Grade School Tools
↪️ Presentation Tools
↪️ Data Visualization
↪️ Grammar / Spell Check
↪️ Text Rephrasing
⭐ OpenBoard, DGM, NotebookCast, WebWhiteboard, Microsoft Whiteboard, WBO, OurBoard, Whiteboard.fi or Whiteboard Fox - Whiteboards
FreeForStudent - Free for Student Deals
ImageJ or Fiji - Scientific Image Analyzers
Altium - Schematics Visualizer
Wolfram Cloud - Computational Intelligence
GradesFixer - Essay Samples
Tempumail or etempmail - EDU Email Addresses
Edu VPN - Institute Access VPN
BachelorStudies - Bachelor Degree Search
Talem - Extracurricular Search
Niche, TheUniGuide, Alumnius or Top Universities - University / School Comparisons
RateMyDorm or :) - College Dorm Reviews
RateMyProfessor - Professor Ratings
Wordwall - Lesson Creator
The Chomsky Index - Noam Chomsky Content Index Tool
Internet-In-A-Box - Create Free Offline Learning Hotspots / GitHub

▷ Study / Research

🌐 Awesome Research, Scolary, KausalFlow, Foam, Zotero, ResearchRabbit or Scrible - Research Tools
🌐 Digital SAT Resources - SAT Resources
↪️ Note-Taking Tools
↪️ Documents / Articles
⭐ Wolfram Alpha - Searchable Knowledge Base / Mobile
⭐ StudyLion - Study Tracker / Productivity Discord Bot / GitHub
⭐ StudyKit StuDoc / Downloader / 2, Gizmo, Knowt, Quizlet, Shmoop or SparkNotes - Quizzes / Study Material / Show Hidden
⭐ Anki / Discord / Subreddit / GitHub, StudyLib, RemNote, Flippity, Flashcard Machine, MemoAnki, revisiondojo, Flashka or NoteKnight - Flashcard Tools
⭐ Anki Tools - Add-ons / Decks / Resources
⭐ Coursicle - Class Schedule Tracker / Android
⭐ OpenSyllabus - Syllabus Search / Info
⭐ Refseek, Explorer or Merlot - Academic Search Engines
SciSpace (No Sign-Up), Scinito or Elicit / GitHub - Research Paper Chatbots
Co-STORM - Generate Wiki-Style Articles for Anything
mybib, citemaker, formatically, zbib, CitationMachine, CiteFast or Cite This For Me - Generate Citations / Chrome
Publish or Perish - Citation Analyzer
Inciteful - Find Connected Literature via Citations
PLText, PlagiarismDetector or Duplichecker - Plagiarism Checkers
cb2bib - Reference Extractors / Managers
MassiveMark - Convert LLM Chats to DOCX / Discord
GROBID - Extract / Organize Scientific Document Info
ExpertFile or ExpertiseFinder - Industry / Academic Expert Search
Catma - Research Markup & Analysis Tool
OpenRefine - Data Cleaning
Taguette - Data Analysis Document Tagging
Lurnby - Research Highlighting Tool / GitHub
General Index - Article Metadata Mining Project
Papertag - Attach Digital Content to Paper
Graded - Grades Tracker / Android / GitHub
GradesCalculator - Calculate CGPA & GPA
CalculateCGPA - Calculate GPA
LearnedEasy - Create Summaries / Quizzes from Books
SearchifyX - Search Flashcards
ForgetMeNot - Flashcard Mobile App
Get Unstuck or Brainly / Limit Bypass - Homework Help Bots / Communities
Toppr, FreeOnlineTest, Alloprof or AE Old (Discord) - Test Practice & Homework Help
DoubtNut - Exam / Solutions / Help
MammothMemory - Visual Memory-Based Solutions
StudyStream or StudyTogether - Online Study Groups
Space Finder - UK Study Space Search
Papers.Xtreme - Test Revision Notes & Answers
OnePrep or The SAT: Practice Tests - SAT Practice Exams / Questions
SATArchive - Previous SAT Test Archive
SAT Reading - Suggested SAT Reading
SAT_Files_discussion - SAT Exam Discussion
Examveda, SaveMyExams or Aglasem - Exam Practice
MajorTests - Practice Tests
CrackAP - Practice AP Exams
AllFreeDumps - Exam Dumps
IndiaBIX - Aptitude Tests
IBResources - International Baccalaureate Resources
/r/ApStudents Resources - Former AP Exams
/r/APStudents Course Survey - AP Exam Comparison Spreadsheet
/r/CATpreparation - CAT Test Prep / Discord
Revisely - GCSE Exam Help
CatchaScience, IGCSEResources, r/IGCSE or ZNotes - IGCSE Study Notes / Resources
IGCSE Papers or Physics & Maths Tutor - Download Past GCSE / IGCSE Papers
IELTS69 - Cambridge Practice Tests
CaieFinder - Previous Cambridge Test Answers
anthropology - UPSC Telegram Channel
GaryChamberlainLectureNotes - Econometrics Lecture Notes
ITExams - IT Exam Collection
Cheatography - Educational Cheat Sheets
LitSolutions - Textbook Solutions
Science Career General - PhD / STEM Career Study Guides
HamExam, AA9PW or HamStudy - Ham Radio Practice Exams

▷ JEE / NEET

🌐 /r/JEENEETards Index - Guides / Study Material
⭐ PirateHive - Guides / Study Material
⭐ ExamSide - Practice / Study Material
⭐ JEE Hub - JEE / NEET PYQs
JEE Books - JEE Books Archive
Genetry or Lec.Branch - JEE Lectures
YouTube Lengths, Fastlane Lengths or Normal Lane Lengths - Lecture Lengths / Data
MarksAPP - Guides / Study Material / Telegram
Adv Study Material - Guides / Study Material
DoubtNut - Solutions / Help / Ad Bypass

▷ Calculators

⭐ Wolfram|Alpha - Calculators
⭐ Omni Calculator - Calculators
⭐ OpenCalc, yetCalc, microMathematics, Calculator++, Calc 991 or Graph89 - Android Calculators
⭐ Microsoft Math Solver, SpeedCrunch or MathPapa - Advanced Calculator
⭐ SageCalc, ti84calc.online, CEmu, ti-84calculatoronline, TI 84 Calculator, TI-84 Plus / Shell, TI-84 Online or ti84calc - TI-84 Calculators
⭐ GeoGebra, Grapes or Desmos - Graphing Calculators
⭐ Cymath, PhotoMath, Mathway, MathDF, Math Solver, Tiger Algebra or Symbolab - Math Problem Solvers
Omnimaga - Calculator Community / Forums
GoodCalculators - Calculators
GigaCalculator - Calculators
numbr.dev - Calculators
Aqua Calc - Calculators
PlanetCalc - Calculators
TI-30 Calculator Online or ti30calc - TI-30XS Calculator
TI-108 Calculator Online - TI-108 Calculator
ThomasOkken - HP-42S Calculator
FreeFEM - Partial Differential Equations Solver
MatrixCalc or Reshish - Matrix Calculators
Qalculate - Desktop Calculator
QwikTape - Note Style Calculator
Integral Calculator or Derivative Calculator - Integral / Derivative Calculators
fxSolver, SpeedCrunch, Kalker or Numbat - Scientific Calculators
TicCalc - TI Graphing Calculator Files
arTIfiCE - TI CE Calculator Jailbreak
TI-Basic Developer - TI-Basic Info Repository

▷ Dictionaries / Thesaurus

🌐 Dictionary Index - List of Online Dictionaries
⭐ OneLook - Multi Dictionary / Thesaurus Search
⭐ Merriam-Webster - Dictionary / Thesaurus
⭐ GoldenDict / 2 - Dictionary / Files
⭐ TheSage - Dictionary / Thesaurus
⭐ NGrams or Netspeak - Word Usage Trackers
⭐ The Piracy Glossary - Piracy Dictionary
⭐ UrbanDictionary / Frontends or Slangit - Slang Word / Phrase Dictionaries
NinjaWords - Dictionary
Wordnik - Dictionary
Oxford English Dictionary - Dictionary / Bypass
Cambridge Dictionary - Dictionary
LDOCE - Dictionary
Wiktionary - Dictionary
Lexicool - Dictionary
Vocabulary - Dictionary
TheFreeDictionary - Dictionary
Dictionary - Dictionary
Word Hippo - Thesaurus
Thesaurus.com - Thesaurus
PowerThesaurus - Thesaurus
VisualThesaurus - Thesaurus
Historical Thesaurus of English - Historical Thesaurus
Webopedia or TechTerms - Tech Dictionary
Phrases.org - Phrase Dictionary
Time Traveler - Find Words First Printed Usage
EtymOnline or WorldwideWords - Etymologies
StarlingDB - Advanced Linguistics Dictionary
Words to Use - Find Alternative Words
Phrontistery - Obscure Word Dictionary
LexiLogos - Multi Language Dictionary Index
Reverse Dictionary - Lookup Words via Phrases
WikiDiff - Difference Between Any Words
Websters 1913 - 1913 Websters Dictionary
Unionpedia, Lexipedia, VisuWords or WordWeb - Word Connections / Visualizers
DoesNotTranslate or Eunoia - Words with No Translation
Tip of my Tongue - Find Words you Can't Remember
Abbreviations.com - Abbreviations
Affixes.org - Affixes
AcronymFinder, All Acronyms or The Acronym Server - Abbreviations / Acronyms
Chat Words Dictionary - Chat Abbreviations
Fraze.it - Sentence Search
DescribingWords - Adjectives
Better Synonyms - Synonyms
Thsrs - Synonyms
Synonym.com - Synonyms
Feeels - Emotion Synonym Chart
Gender Neutral Dictionary - Gender Neutral Language Dictionary
PrideFlags - LGBT Flag Index
TheIdioms - Idiom Dictionary
RhymeZones or Rhymer - Rhyme Dictionary
TheDevilsDictionary - Cynical Dictionary
WordSafety - Swear Word Indexes
FreeMdict - Dictionary Downloads / Archive
PyGlossary - Convert Dictionary Files

▷ Encyclopedias

🌐 List of Encyclopedias - Online Encyclopedia Index
⭐ Wikipedia - Encyclopedia / Content List
⭐ Wikipedia Frontends - WikiWand or ModernWiki
⭐ EncycloSearch or EncycloReader - Encyclopedia Search Engines
⭐ Wolfram Alpha - Searchable Knowledgebase
Omniglot - Writing Systems & Languages Encyclopedia
Archivy - Self-Hosted Wiki
Simple Wiki - Simplified Wikipedia / Auto-Redirect
Britannica
EverybodyWiki
Encyclopedia
NewWorldEncyclopedia
Citizendium
Wikitia
InfoPlease
Refdesk
HandWiki

▷ Wikipedia Tools

🌐 Wiki Portals - Wiki Portals Navigation
HatNote - Top Pages
Reversepedia - Page Connections
Wiki Dark Mode - Dark Mode
wik - Wiki TUI
CDPedia - Offline View
WikiExtractor - Extract Text
Substance - Extract Markdown
UrlShortener - Shorten URLs
WikiNearby - Location Search
EntiTree - WikiData Visualization Tool / GitHub
Wiki Timeline - Create Timelines from Wiki Articles