Educational

Documentaries

1337x Documentaries ⭐
Documentary+ ⭐
DocumentaryArea ⭐
IHaveNoTV ⭐
ARTE
Documentary Network
Documentary Storm
Documentary Tube
DocumentaryHeaven
Films For Action
Folkstreams
Free-Official-Youtube-Content - YouTube Channel List
LearnOutLoud
Media Burn Archive
MVGroup
NASA+ - Official NASA Streaming Service
National Geographic
PBS
r/Documentaries
Rocumentaries
Thought Maybe
Top Documentary Films
Videoneat
WatchDocumentaries
YT Video Essay Hall of Fame - YouTube Video Essay Archive / Frontend

Courses

Streaming

Audio Download CSE - Multi-Site Search ⭐
Class Central - Search for Courses ⭐
edX - Courses / Downloader ⭐
Khan Academy - Courses / Downloader ⭐
MitOpenCourseWare - Courses ⭐
Alison - Courses
Crash Course - Topic Crash Courses
DigitalGarage - Google Courses
EbookFoundation Courses - Courses
⁠Educational Hub - Courses
Gresham College - Lectures / YouTube
LearnOutLoud
Limnology - Educational YouTube Channels
OLI - Courses
OpenCulture - Courses
OpenHPI - Courses
OpenLearn - Courses
Saylor Academy - Courses
Video Lectures - Lectures
Yale Courses - Lectures / YouTube

Downloading

Course Busters - Course Busters Access ⭐
HackNation - Courses ⭐
tut4dl - Courses ⭐
AfraTafreeh - Courses
CertCommunity - IT Cert Courses
Free-Courses-For-Everyone - Course Site Index
FreeCourseSite - Torrenting Sites / Use VPN
learningDL - Courses / Requires Leech
LinkedIn_Learning - LinkedIn Courses

Learning Sites

PhET - Interactive Lessons ⭐
r/coolguides - Guides & Tutorials ⭐
r/educationalgifs - Learn with GIFs ⭐
r/explainlikeimfive - Have Anything Explained Very Simply ⭐
The Punctuation Guide - Punctuation Guide ⭐
AFAIK - Learning Map
Alchemy Forums - Alchemy Forum
AnimaGraffs - Animated Infographs
Appropedia - Sustainability Wiki
⁠Astral Codex Ten (ACX) - Science, Psychology, and Philosophy Blog
Awesome Educational Games - Educational Games Index
⁠Basic Knowledge 101 - Knowledgebase / Topic Learning
British & Exotic Mineralogy - Mineralogy Database
Common Misconceptions - Common Misconception Index
Explorabl.es - Quizzes / Guides / Games
HowStuffWorks - Learn How Things Work
Information Is Beautiful - Data / Information / Infographics / Visualizations
Learn Anything - Learning Resource Search / Free Method
LitCharts - Literature Guides
masterWiki - MasterClass Classes Republished as wikiHow Articles
media.ccc.de - Educational Presentations
Memory Toys - Memory Tests / Training
OpenCulture - Learning Resources
OSSU - Learning Resources
P2PU - Join Learning Groups Using Free Courses
ShipSpotting - Ship Index / Images
Stack Exchange - Q&A Communities
Ted Talks - Inspiring and Educational Talks
The Free Learning List - Learning Resources
Wakelet - Learning Resources

Virtual Tours

CityHop - Lofi Radio / City Walks ⭐
360Cities - 360 Images / Videos
Basilica Viewer - St. Peter’s Basilica Tour
BelowTheSurface - Archeological Object DB of Amsterdam
Digital Giza - Great Pyramid Virtual Tours
Gez.la - Virtual Tours Map
Matterport - Explore Real Places Digitally
Musei Vaticani - Virtual Museum Tours
National Palace Museum - National Palace Museum Virtual Tours
Natural History Museum - Natural History Museum Virtual Tour
Persepolis Reimagined - Explore Persepolis Recreation
Smithsonian 3D - Smithsonian 3D Digitization Museum
Spitfire Panorama - Spitfire Mark IX Cockpit Interactve Panorama
The Bayeux Tapestry - Bayeux Tapestry 3D Digitization
Virtual Museum Resources - Online Museums
Virtual Vist Tours - Ireland Virtual Tours
Virtual Yosemite - Virtual Yosemite Tour
Wiki Spaces - Virtual Tours
WW2 in 100 Objects - WW2 Museum Virtual Tour

Science / Math

BOINC - Donate Idle GPU + GPU Resources to Scientific Research / Manager / Number Theory / Humanitarian
LabXchange - Interactive Science Simulations
TIB AV-Portal - Science Videos

Physics

Bartosz Ciechanowski - Physics Lessons / Learning ⭐
Physics Simulations - Physics Simulations / Animations ⭐
The Feynman Lectures - Physics Lectures ⭐
Algodoo - Interactive Physics Tool
avogadro - Molecular Viewers / Editors
Bouncy Balls - Ball Physics Simulator
Compare Pendulum - Pendulum Simulators
Interactive 4D Handbook - Interactive Fourth Dimension
LAMMPS - Molecular Dynamics (MD) Code
LibreTexts Physics - Physics Learning / Guides
nLab Physics - Physics Encyclopedia
OpenFoam - Fluid Dynamics Simulators
Physics Aviary - Physics Tools
Physics Forums - Physics / Science Forum
Physics Olympiads - ISODN Physics Discord Community
QPaths - Learn Basic Quantum Terms
Quantum Web Directory - Science / Tech / Math / Physics
Ray Optics Simulation - Light Reflection / Refraction Simulator
SimScale - Fluid Dynamics & Heat Transfer
Simuwaerm - Heat Simulator
Unihedron - Electromagnetic Radiation Spectrum Chart
Virtual-Lab - Interactive Quantum Computing Lessons
WebGL Water - Water Simulation

Math

AoPS Alcumus - Adaptive Problem Solving ⭐
BetterExplained - Math Guides / Courses ⭐
Manim - Generate Explanatory Math Videos / Videos / Difference Between Versions ⭐
Number Academy - Encyclopedia of Numbers ⭐
Open Source Society University - Math Roadmap ⭐
WolframAlpha - Searchable Knowledge Base / Mobile (search) ⭐
Wumbo - Math Reference Site ⭐
Algebra Rules - Learn Algebra Rules
⁠Algebrica - Mathematical Concepts Database
Awesome Math - Math Resources
Brainstellar Puzzles - Puzzles from Quant Interviews
Calculus Made Easy - Learn Calculus
CLP - Calculus Textbooks
Converter Pro - Unit Converters / Calculators
Coolmath Games - Math Games
Cut The Knot - Math Equations / Problems
Fourier Transform - Interactive Fourier Transform Guide
Giac/Xcas - Algebra System
HSC Maths By Topic - HSC Math Practice
⁠Immortal's Maths Problems - Math Practice / Guides
IMS - Introduction to Modern Statistics
ISciDAVis - Scientific Data Plotter
ISODN Math - ISODN Math Discord Community
IXL Learning - Math Practice / Quizzes
LibreTexts Statistic - Statistic Practice / Guides
Math and Science Lectures - Index of Math + Science Video Courses
⁠Math Discord - Math Help / Community Discord
Math is Fun - Math Tutorials / Puzzles / Games
Mathcha - Online Math Editors
⁠Mathematical Olympiads - Mathematical Olympiads Discord Community
Mathematics Roadmap - Mathematics Book Recommendations
Mathispower4u - Math Lessons / Practice
MathJax - JavaScript Math Display
MathOnline - Math / Courses
Matthen - Math Animations
OEIS - Encyclopedia of Integer Sequences
Open Logic Project - Math Logic Teaching Materials
ParkMath - Math Guides
Professor Leonard - YouTube Math Lessons
Project Euler - Math / Programming Problems
⁠ProofWiki - Mathematical Proofs Encyclopedia
Red Blob Games - Interactive Math Sites
Seeing Theory - Statistics & Probability Tutorials
SequenceDB - Sequence Machine
Terence Tao Research - Mathematical Research
Wolfram MathWorld - Mathematics Encyclopedias

Engineering

KiCad - Schematics Editor / PCB Creator / SPICE Integration ⭐
NPTEL - Engineering Courses ⭐
r/AskEngineers - Engineering Subreddits ⭐
/m/engineering - Engineering Multireddit
507 Movements - Mechanical Movement Animations
⁠Animated Engines - Engine Animations / Explanations
Awesome Electronics - Electronic Engineering Resources
Awesome Mecheng - Mechanical Engineering Resources
BatteryUniversity - Learn About Batteries
Build List - On-Demand Online Manufacturers
CESDB - Engineering Software
Circuit Steps - Circuit Analysis Tool
Cyberbotics - Robot Simulator
Diode - 3D Hardware Simulator
Electronics Tutorials - Electronic Guides
Engineering Blogs
Falstad - Electronic Circuit Design / Simulation Tools
⁠Hacker Fab - Semiconductor Documentation / Research
HDLBits - Learn Circuit Design
⁠Humanity's Last Machine - Humanoid Robotics Hardware & Supply Chain Analysis
⁠IEEE Spectrum - Engineering Magazine / News
LibreTexts Engineering - Engineering Learning / Guides
⁠McMaster - Free 3D Printable Hardware Parts + Tools
⁠OpenCores - Open-Source IP Cores Repository
r/EngineeringStudents Resources - Engineering Student Resources
RetroSix - Retro Console Repair Guides + Info
Robot Shop - Robotics Forum
Sanfoundry - Engineering Questions & Answers
The Engineering Toolbox - Engineering Resources
⁠The Pinouts Book - Pinout Function Reference Guide
VisRo Robotics - Robotics Learning
Wokwi - Arduino / ESP32 Board Simulators

Aerospace Engineering

⁠AerospaceWeb - Aerospace Info Database / Calculators / Q&A
Airfoil Tools - Airfoil Coordinates / Dat Files
⁠Av8n - Aviation Physics Textbook
Awesome Aerospace Engineering - Aerospace Engineering Learning Resources
Awesome Flying FPV - Remote Copter / Plane Resources
Boeing 737 Technical Site - B737 Technical Engineering Guides / History / / YouTube
eCalc - Aerospace Engineering Calculators
Falcon BMS - Falcon 4.0 Modernization Project / Wiki / Forum / YouTube
Flight Mechanics - Aircraft Flight Mechanics Learning
FlightGear - Open-Source Flight Simulator
Half Cat Rocketry - Liquid Rocket Guide / Info / Resources / Documentation
⁠Hot Nozzle Society - High-Power Rocketry Guide / Community
⁠Jacobs Rocketry - Rocketry Info / Manuals
JCRocket - Rocketry Technical Information / YouTube
⁠JetPhotos - Aircraft Indexes / Images
⁠Langostino - Decentralized AI Drone Pilot Platform / Learning
⁠MIT Rocket Team - Official MIT Rocket Team Wiki / Resources Wikipedia
Nakka Rocketry - Rocket Technical Archive
Open Drone Logbook - FOSS Drone Log
OpenDroneMap - Drone Mapping Software
⁠openMotor - Internal Ballistics Simulator
⁠OpenRocket - Rocket Simulator / Wiki
OpenVSP - Aircraft Geometry Tool
⁠OscarLiang.com - FPV Drone Tutorials / Reviews
Outerzone - Vintage Model Airplane Plans
⁠r/AerospaceEngineering - Aerospace Engineering Community
⁠r/rocketry - Rocketry Community
RCPlanes Online - RC Plane Aerodynamics / Guides
Robert’s Rocket Project - LOX/Kerosene Liquid Rocket Info / Resources / Documentation
⁠RocketPy - High-Powered Rocket Simulator
⁠RocketReviews - Rocket Reviews / Test Results
SeligSIM - Flight Simulators for RC Planes
SmartCockpit - Aircraft Systems / Technical Manuals
Stolen Drone - Stolen Drone Info
⁠The Rocketry Forum - Rocketry Forums / Community
ThrustCurve - Rocket Motor Performance Database
Tripoli Rocketry - High-Powered Rocket Resources / Info
⁠UAVs FYI - Drone Information, Guides and Resources
UIUC Applied Aerodynamics Group - Airfoil Coordinates / Aerodynamic Research
XFLR5 - Airfoils Analysis Tool

Chemistry

Internet Chemistry - Chemistry Search Index ⭐
Lab Safety Guide / Intro ⭐
LibreTexts Chemistry - Chemistry Texts ⭐
Arkivoc - Journals
Chemexper Chemical Directory - Chemical Directory
Chemical Forums - Chemistry Forums
ChemicalAid - Chemistry Calculators / Element Tables
Chemistry Basics - Basics of General, Organic, and Biological Chemistry
ChemistrySteps - Chemistry Practice / Guides
ChemistryTalk - Tutorials / Experiments / Elements / Reference Articles
ChemSpider - Chemical Structures
ChemTube3D - Interactive 3D Chemistry Animations
Cliffnotes Chemistry - Study Guides* ReactionFlash / iOS - Chemical Reaction Flashcards
Colorado Chemistry Simulations - Chemistry Animations
CommonOrganicChemistry - Common Reactions / Common Reagents
⁠Compound Interest - Chemistry Infographics
IGOC - Illustrated Glossary of Organic Chemistry
ISODN Chemistry - ISODN Chemistry Discord Community
Merck Index - Online Merck Index
name-reaction - List of Name Reactions
Organic Chemistry - Organic Reactions
Organic Chemistry Data
OrgSyn - Chemistry Prep Guides
PubChem - Chemistry Wikis
Sciencenotes - Periodic Tables / Chemistry Projects and Questions
Video-Tutor - Chemistry Lessons
WebQC Balance Calculator - Chemical Equation Balance Calculator
Wolfram Alpha Chemistry - Chemistry Calculators / Tools

Periodic Tables

Images-of-elements - Element Images ⭐
periodic-table.org - Material / Element Learning Resources ⭐
Ptable - Interactive Table ⭐
Atom Animation - 3D Visualizations of Atoms
Periodic Table App - Interactive Table
periodic-table.io - Interactive Table
⁠Photographic Periodic Table - Image-Based Periodic Table w/ Physical Examples
WebElements - Interactive Table
⁠Zperiod - Interactive Table

Biology

Animalia - Animal Encyclopedia ⭐
Lost and Found Nature - Rediscovered Animal / Plant Database ⭐
OneZoom - Tree of Life Explorer ⭐
Wikispecies - Species Databases ⭐
Alien - Artificial Life Simulator / Video
AntWeb - Ant Species Database
Backyard Chickens - Chicken Raising Forum
Biodiversity Heritage Library - Biodiversity Research
Biology Online - Biology Articles
⁠BioNinja - IB Biology Reference / Study Guide
⁠BirdLife DataZone - Bird Conservation Information
BirdSounds - Thousands of Bird Sounds Visualized
BugGuide - Insect Identification Community
eBird - Bird Species Databases / IDs
EuroBirdPortal - European Bird Distribution Map
Featherbase - Bird Feather Database
iNaturalist - Organism Identification
ISODN Biology - ISODN Biology Discord Community
LibreTexts Biology - Biology Learning / Guides
Life Under the Ice - View Antarctic Microbes
Macroinvertebrates - Freshwater Macroinvertebrates Atlas
Metazooa - Species Connection Game
Ocearch - Track Marine Life
Pattern Radio - Listen to Whale Songs
⁠Phenome10K - Biological / Palaeontological 3D Scans
Pteros - Pterosaur Database
RecentlyExtinctSpecies - Recently Extinct Species Database
Science Geek - Biology Study Guides
Spider ID - Spider Species Database / Identification Community
⁠The Biology Project - Biology Problem Sets & Tutorials
The Deep Sea - Interactive Deep Sea Life Guide
The Ferns - Tropical Plant Database
UniProt - Protein Database
⁠Wayne's Word - Biology and Botany Information / Learning
WFO - Plant Database
WhyDoCatsAndDogs...? - Pet Q&A Site

Med School

Afratafreeh - Medical Video Courses and Books ⭐
Khan Academy - Physiology / Pathology Overviews ⭐
Radiopaedia - Radiology Resources ⭐
⁠Stop the Bleed - Free First Aid Video Courses / Resources ⭐
Antibiotics Summary - Antibiotics Summary Image
Calgary Guide - Disease Pathophysiology / Manifestation Flow-Charts
CRAM - Medical Flashcards
DeployedMedicine - Combat Medicine Guide / Manuals / Videos
DermNet - Dermatology Reference Site
ECG Wave-Maven: Self-Assessment Program - ECG Practice / Learning
EMCrit - Emergency Medicine Information
Emergency Medicine Cases - EM Case Index
EMRap - Emergency Medicine Videos
Epidemic Calculator - COVID Data
⁠EyeWiki - Eye Encyclopedia
⁠Folding@home
Geeky Medics - Clinical Guides
Get Body Smart - Anatomy Guides
Healio ECG Review - ECG Information
⁠HemOnc - Hematology / Oncology Reference Site
Hyper Heart - Massey University Heart Animation
Inner Body - Anatomy Atlas (2D&3D)
LibreTexts Med - Medical Learning / Guides
MalaCards - Human Disease Database
MDCalc - Medical Reference Sites / Tools
Nextstrain - Pathogen Evolution Tracking
NIH Print - Biomedical Science 3D Models
Passmedicine - UCAT Practice Questions
Pathology Outlines - Pathology Info
r/MedicalSchool Wiki - Med School Resources
r/medicalschoolanki - Community for Medical Anki Cards
Sectional Anatomy - Cross Sectional Educational MRI / CT Scans
Steves Classic Baseball - Baseball Replays
The Iowa Virtual Slidebox - Pathology Atlas Software
Tulane University Pharmacology - Pharmacology Info & Quizzes
UCAT Score - UCAT Score Converter
University of Minnesota Histology - Histology Guides
University of Utah Pathology - Pathology Guide
Zygote Body - 3D Human Anatomical Models

Space

March to the Moon - Apollo (Missions) Images ⭐
NASA - National Aeronautics and Space Administration Website / Images / Audio / Documents / APIs / History ⭐
r/Space - Space Subreddit ⭐
Space Dashboard - Space Live Stream Dashboard ⭐
Apollo in Realtime - Interactive Apollo Missions
Artemis II Photo Timeline - Artemis II Photo & Video Timeline
⁠Cosmos2025 - Interactive Universe Scales
CSA - Canadian Space Agency Website
Encyclopedia Astronautica - Space Encyclopedia
ESA - European Space Agency Website
ExoplanetArchive - Exoplanet Database
ExoplanetExplore - Interactive Exoplanet Visualization
ISODN Earth Science - ISODN Earth Science Discord Community
ISRO - Indian Space Research Organization
JAXA - Japanese Space Agency Website / Images / Videos
Marspedia - Mars Wiki
NASA History - NASA Books
NASA's Eyes - 3D Space Visualizations / Solar System
RGV Aerial Photography - Aerial Photography Community / News
⁠Russian Space Web - Russian Space Program News / History
Space.com - Space News
TheCMB - 3D Cosmic Microwave Background Model

Astronomy

In The Sky - Astronomy News / Interactive Guides ⭐
JPL Photojournal - JPL Planetary Image Archives ⭐
NASA2Explore - Astronomy Images ⭐
1 Pixel moon - Solar System Scale Model
Aladin - Astronomical Image quar fViewer / Lite Version
AndroidPlanisphere - Android Star Chart
APOD - Daily NASA Astronomy Images
Astrogeology - Planetary Maps
CelesTrack - Earth Orbit Visualization
Clear Dark Sky - Star Gazing Weather Forecasts
Dark Site Finder - Star Gazing Site Locators
Earth and Moon Viewer - Earth / Moon Latitude and Longitude Viewer
ESA Hubble - Hubble Telescope Images
ESAsky - Public Astronomical Data
Free Astronomy Resources - Books / Notes / Astronomy / Physics
ISODN Astronomy & Astrophysics - ISODN Astronomy & Astrophysics Discord Community
James Webb Space Telescope - Webb Space Telescope Sites
Live Meteors - Live Meteor Radio Echoes
Meteor Showers - 3D Meteor Shower Visualization
Nights on Earth - Astronomical Event Calendar
Planet Globe - Virtual Globes
r/SpacePorn - Astrophotography Subreddits
SDO Dashboard - Live Sun Feed
Siril - Astronomical Image Processor
Sky Calendar - Astronomy Calendar
Space Object Comparison - Compare Sizes Of Celestial Objects
Space Weather News - Space Weather Updates / Videos
Stellarium-Web - Virtual Stellariums
SunCalc - Sun / Moon Position
TheSkyLive - Solar System Simulators / Information
ViewSpace - Space Videos and Digital Interactives
Webb Compare - Webb / Hubble Images
⁠WikiSky - Interactive Star Visualizations
WorldwideTelescope - Interactive Telescope Data / Home Page

Spacecraft

EarthData - Daily Satellite Replays ⭐
Visible Earth - Satellite Imagery ⭐
Andegraf Rockets - Rocket Diagrams
⁠Gunter's Space Page - Satellite Encyclopedia / Launch Database
ISS In Realtime - Historical ISS Mission Replays / Database
ISS Sim - ISS Docking Simulator
Leolabs Space - Low Earth Orbit Simulator
NASASpaceFlight - Launch Livestreams / News / Forum / / YouTube
⁠Next Spaceflight - Rocket Launch / Space Flight Trackers
Orbiter - Open Source Spaceflight Simulator
⁠Ringwatchers - Starship Diagrams / Articles / Community
Satellite / Earth Data
Satellite Map - Satellite Orbit Maps / Trackers
See A Satellite Tonight - Satellite Viewing Schedule / Locations
Sen - ISS Live Feed + Video Archive / YouTube
Spacebook - Evaluates / Tracks Satellite Collision Risks & Maneuvers
⁠Spaceflight Archive - Rocket Launch History / Visualizations / Stats
⁠Sven's Space Place - Space Mission Technical Analysis
TonyBela Infographics - Spacecraft / Rocket Infographics
Transit Finder - ISS Transit Tracking

History

Histography - History Timelines ⭐
MorbidKuriosity - Dark History, Conspiracies, Crime, Myths, etc. ⭐
911 Realtime - 9/11 in Real-Time
⁠Arachne - Archaeology Object Database
Athena - Greek History Encyclopedia
BlackPast - African History Encyclopedia
CARI - Design Aesthetics History
ChinesePosters - Chinese Propaganda Poster History
EyewitnesstoHistory - Historical Eyewitness Testimonies
Forebears - Name Etymologies
⁠gwulo - Historical Hong Kong Photo Archive
LibreTexts History - History Learning Texts
ManuscriptMiniatures - Medieval Manuscript Images
Mission US - American History Learning Games
Museo - Museum Search
OnThisDay - What Happened on Specific Days
PessimistsArchive - Historical Technological Pessimism Archive
Royal Armouries Collections - Ancient Armaments Museum
Royal Constellations - Royal Family Ancestral Visualization
Shorpy - Historical Photos
SmartHistory - Art / Cultural Object History
⁠The Food Historian
The Food Timeline - Food History Timeline
⁠WildWinds - Ancient Numismatics / Coin Database

Tech History

⁠Historical Tech Tree - Historical Discovery / Tech Timelines ⭐
BetaWiki - Operating System / Software History
Crypto Museum - Cryptographic Machine History
ETHW - Engineering and Technology History Wiki
Folklore - Apple Computer History
info.cern - First Website on the Internet
InfoMesh - Web History / Info
KilledByGoogle - Dead Projects Archives
MobilePhoneMuseum - Mobile Phone History / Info
Museum of Obsolete Media - Physical Media Format Wiki / History
NuclearWeaponArchive - Nuclear Weapons History
Old Computer Museum - Computer History
The HP 9845 Project - HP 9845 Computer History
The Retro Web - Computer Hardware History
TubeVault - Archive of Oldest YouTube Users & Videos
VersionMuseum - Website History / Info
VGA Museum - Graphic Cards History
Virus Encyclopedia - Computer Virus History
WalkmanLand - Walkman History / Database

Mythology / Folklore

GodChecker - Religion / Mythology History ⭐
Theoi - Greek Mythology ⭐
ABookOfCreatures - Mythological Encyclopedias
Encyclopedia Mythica - Mythology / Folklore / Religion
FolkTexts - Mythology / Folklore
Germanic Mythology
Inuit Myths - Inuit Mythology
Japanese Mythology - Japanese Mythology / Folklore
Mythology.net - Mythology / Religion
ObscUrban Legend Wiki - Mythology / Urban Legends

Humanities

Geography / Sociology

Ekvis - Geography Quiz Sites ⭐
⁠Integrity Index - US Political Finance Integrity Database ⭐
Our World in Data - World Problem Database ⭐
The Atlas of Economic Complexity - Global Economic Growth Data ⭐
Worldometer - World Data & Statistics ⭐
8000ers - Mountain Visualization & Info
AntipodesMap - Find Antipodes
Awesome Datasets - Public Datasets
BLS - U.S. Bureau of Labor Statistics
City Data - US City Data
Climate Data - Climate Change Data
Country Infographics - Country Infographic Images
⁠Cultural Atlas - World Culture / Religion Guides
Data Commons - Data Visualizations
DataUNODC - Drug / Crime Statistics
Dollar Street - Compare Homes by Country / Income
En-ROADS - Climate Solutions Simulator
EverySecond - Visualize Per Second Data
Expatistan - Cost of Living Calculator
ExtremeWeatherWatch - Extreme Weather Data / Tracking
Flag Guesser - Flag Quizzes / Guessing
Flag Stories - Flag Design Breakdowns
FlagLog - Flag Databases
Global Volcanism Program - Volcano Information Database
GovTrack - US Government Legislation Tracking / Votes
Gun Violence Archive - Gun Violence Statistics
iCivics - U.S. Law Learning Games
If It Were My Home - Country Data Comparisons
Incarceration in Real Numbers - Incarceration Visualization / Facts
LibreTexts Social Science - Social Science Learning
Maps.com - Interesting / Educational Maps
NationsEncyclopedia - Location / Population Data
Netblocks - Find Impact of Internet Shutdown on Economy
OEC - Global Trade Data
OEC Games - Trade Data Games
OpenSecrets - Government Money Tracking
⁠Opportunity Atlas - Interactive Future Success Impact Map
Rulers.org - World Heads Of State & Government Database
Soar - Atlases
Statista - Market Statistics
Symbols - Symbol Database
Teuteuf - Country Guessing Games
The True Size - Compare Country Size
Trans Rights Map - Trans Legal Rights Map / Policy Tracking
Unequal Scenes - Scenes of Inequality Around the World
Wealth, Shown to Scale - Wealth Inequality Visualization / Facts
⁠WikiMapped - 1.3M Wikipedia Articles Geolocated on Map
World Births and Deaths - World Birth / Death Rates Visualization
WorldLicensePlates - World License Plate Index
WorldPoverty - World Poverty Data

Philosophy

Stanford Encyclopedia of Philosophy - Philosophy Encyclopedias / Search ⭐
⁠1000-Word Philosophy - 1000-Word Essays on Philosophical Topics
Art of Manliness - Develop Life Skills
Brainkit - Learn Helpful Principles
⁠Effective Altruism Forum - ⁠Effective Altruism Learning / Forum
IEoP - Learn about Logical Fallacies
Kialo - Debates / Discussion
Logitext - Sequent Calculus Tutorial
ModalLogic - Model Logic Playground
Open Logic Project - Math Logic Teaching Materials
Philosophy Bro - Philosophy Resources / Learning
⁠Philosophy Stack Exchange - Philosophy Forum
Proofs - Natural Deduction Proof Checker
PropCalc - Propositional Logic Calculator
RationalWiki - Pseudoscience Refutation Wiki
Sketchplanations - Explanation Sketches
Social Engineers - Social Engineering Guides
The Trolley Problem Game - The Trolley Problem
Umsu - Analytic Tableaux Generator
Untools - Better Thinking Tools
WikEnigma - 'Known Unknowns' Wiki
Wireless Philosophy - Philosophy Videos
YourBias.is - Learn about Biases

Skills / Hobbies / DIY

Knots 3D - Learn to Tie Knots ⭐
ActivistHandbook - Campaigning / Activism Guides
Antique Pattern Library
ARRL - Amateur Radio Resources / Learning / Exam Search / Question Pools
AXM Paper Space Scale Models - Spacecraft Paper Models
Bridge Command - Bridge Command Ship Simulator
diyhpluswiki - DIY Biohacking
Erowid - Psychoactive Information / Forum
Fold N Fly - Paper Airplane Guides
HamExam - Ham Radio Practice Exams
HypnosisChatBooks - Hypnosis / Telegram
Ian's Shoelace Site - Learn to Tie Shoelaces
LibraryOfJuggling - Juggling Technique Database
Lock Picking 101 - Lock Picking Forum
⁠Low Tech Magazine - Sustainable DIY Tech Guides
Make it Yourself - DIY Projects / Crafts
⁠Online Coin Club - Coin Collectors Database / Info
PaperToys - Printable Paper Toys
PEmbroider - Embroidery Generator
Perry Morse - Learn / Practice Morse Code
PsychonautWiki - Psychonautics Wiki
Ravelry - Fiber Artist Tools
⁠RSN Stitch Bank - Embroidery Stiches / Lessons
Toys from Trash - Use Everyday Items to Make Toys
UER - Urban Exploration / Abandoned Place Forum / MAP
⁠WildWinds - Ancient Numismatics / Coin Database

Music

Muted - Music Theory ⭐
#fretflip - Create / Print Guitar Scales & Chord Charts
911tabs - Tabs
Arpeggiator - Chord Progression Generators
AudioZ - Audio Courses / Forum
Awesome Music Theory - Music Theory Resources
ChiffAndFipple - Irish Traditional Music Forum
Chorder - Guitar Chord Finder
Circle of Fifths - Visualize Notes, Cords and Keys
coop3rdrumm3r - Drum Lessons
FretFlip - Learn Guitar Scales / Chords
Guitar Fretboard - Virtual Fretboards / Guitar Lessons
Helio - Music Composition Tools
HookTheory - Chord Progression Library
JamStart - Spotify Chord Charts
Jazz Improvisor - Improvised Jazz
JustinGuitar - Guitar Lessons
Keyboard Connect - Keyboard Tutoring App
Learning Music - Music-Making Lessons
LearningSynths - Synthesizers
LibreTexts Music - Music Learning
LilyPond - Music Engraving Program
Midiano - Piano Practice / Learning
MIMO - Musical Instrument Database
MusicKit - Metronome, Tuner & Tone Generators
MusicStaff - Music Teacher Search
PerfectPitch - Pitch Recognition Practice
Piano Scribe - Piano Transcriber
ProducerLibrary - Audio Production Tutorials
ScoreCloud - Chord Detection / Transcriber
Sight Singing Factory - Sight Singing Practice
TrueToneGuitar - Guitar Tools
Tuner Ninja - Instrument Tuner
Ultimate Guitar - Guitar Tabs
VGM Sound Sources
⁠Z-Tonnetz

Art / Editing

Art Study Guide - Art Study Guides / Tips ⭐
Drawabox - Drawing Lessons ⭐
PaintingTube - Art Video Tutorials ⭐
Proko - Figure Drawing Lessons ⭐
Agora - Animation Learning Community / Tutorials
AMV101 - Animated Music Video-Making Guides
AnatomyArchive - Human Anatomy Drawing Tutorials
Anime Study General - Anime Production Community
AnimeOutline - Anime / Manga Drawing Tutorials
Artist Reference - Photo References for Artists
ArtWithFlo - Procreate Tutorials
AwesomeAnimeResearch - Anime Machine Learning
cg_tuts - CG Tutorials
Character Design References - Character Design Visual Library
Creator Resources - Art & Animation Resource Index
Curriculum for the Solo Artists - Self-Taught Artist Curriculum
Design Tuts - Design Tutorials
DevinKorwin Color Guide - Color in Paintings Guide
Dimensions - Object Dimension Reference
DoArtDaily - Daily Art Challenges
DomDesigns - Illustrator Tutorials
Draw Mix Paint - Learn Oil Painting
Drawingbooks.org - Old Drawing Books
DrawingNow - Learn to Draw
FloobyNooby - Storyboard Guides
GraphicsCodex - 3D Computer Graphic Guides
Line of Action - Figure Sketch Tools / Lessons
McLelun - Anime Style Background Tutorial
MetPublications - Art Learning Books
Online-Courses - Art / Design Courses
Paintable - Digital Art Tutorials
Painting Demos - Painting Demonstrations
Pedro's Pixel Art Tutorials - Pixel Art Tutorials
PhotoshopTraining - Photoshop YouTube Tutorials
PhotoshopTutorials.ws - Photoshop Tutorials
⁠Practice Drawing This - Drawing Practice
Settei Dreams - Anime Production Materials
Seven Camels - Storyboarding Tips / Learning by Disney's Head of Story
The Bézier Game - Pen Tool Practice
Thomas Romain Perspective - Perspective Guide
TutsPlus - Creative Courses
Ubu - Avant-Garde Artifacts
x6ud - Animal Photo Reference Search

Rubiks Cube

CubeDesk - Feature-Rich Cubing Timers ⭐
J Perm - Cubing Tutorials / Practice Resources ⭐
SpeedCubeDB - Algorithm Database ⭐
alg.cubing.net - Algorithm Animators / Visualizers
BlindTrainer - Blindfolded Rubinks Trainer
⁠crystalcube - CFOP Cross Trainer / Edge Orientation Trainer
Cubing.net - Cubing Tools
F2L Trainer - Algorithm-Specific Trainers
F2L Trainer - F2L Rubiks Trainer
Hypercubing - Hypercubing Wiki
qqTimer - Cubing Timer
Roux Trainers - Learn Roux Solving Method
Rubiks Cube Guide - ⁠Guide to Rubiks Cube / Resources
SolveTheCube - Cubing Timer
Speedcube.app - Cubing Timer (Mobile-Friendly)
SpeedSolving - Cubing Wiki / Community Forum
World Cube Association - Cubing Competitions & Records
⁠ZZ Method - Learn / Practice ZZ 3x3 Rubiks Speedrunning Method

Chess

Scid vs. PC - Learn / Practice Chess ⭐
/m/Chess - Chess Subreddits
2700chess - Live Chess Player Ratings
365Chess - Chess History / Lessons
Awesome Chess - Chess Resources
⁠Chess Analysis - Chess Game / Move Analysis
Chess Monitor - Track Chess Analytics
⁠Chess OCR - Multi-Site Digital Chessboard Analysis
Chess Tempo - Chess Practice
Chess Vision - Chess Game / Move Analysis
Chessable - Chess Lessons
ChessGames - Chess Database / Community
⁠Chessigma - Chess Game / Move Analysis
Chesskit - Chess Game / Move Analysis
ChessLab - Chess Lessons
ChessVariants - 1000+ Chess Variants + Guides
En Croissant - Chess Game / Move Analysis
Listudy - Chess Lessons
Lucas Chess - Chess Practice
OpeningTree - Download / Visualize Chess Games
Pawn Appétit - Chess Game / Move Analysis
r/Chess Books - Recommended Chess Books
⁠Shâh Kur - Blind Chess Practice / Improve Board Visualization
⁠Tactic or Not - Chess Move Analysis / Practice
TheChessWebsite - Learn / Practice Chess
WintrChess - Chess Game / Move Analysis
YottaChess - Chess Game / Move Analysis

Dungeons & Dragons

5etools - Rules & Content References ⭐
D&D Beyond - Official Toolset for 5E ⭐
D&D Compendium - D&D Tools & Learning Resources ⭐
Kobold+ Fight Club - Encounter Builder & Balancer ⭐
Avrae - D&D Automation Discord Bot
Cruinne's D&D Reading Room - D&D Worldbuilding Checklist
D&D Wiki - D&D Homebrew Wiki
⁠DiceCloud - D&D 5e Character Manager
⁠DMHeroes - D&D NPC Generator / Classic
DnD-Books - D&D 4E/5E Books
GM Binder - 5E Homebrew Document Editors
Tetra-cube - Monster Statblock Generator

LEGO

Awesome Lego - LEGO Resources
Brickognize - LEGO Brick / Minifigure Identification Tool
Brickset - LEGO Set Database / Reviews / Marketplaces
⁠Mecabricks Workshop - Virtual LEGO Building
⁠Rebrickable - LEGO Collection Manager / Build Ideas

Language Learning

Multi-Language

Language Reactor - Learn Languages via Videos ⭐
Language Transfer - Language Learning Lectures ⭐
Omniglot - Writing System & Language Encyclopedia ⭐
Readlang - Learn a Language via Web Browsing ⭐
Ba Ba Dum - Language Learning Game
clozemaster - Context-Based Language Learning
Comprehensible Input Wiki - Learn Languages via Comprehensible Input
DLIFLC - Language Learning Quizzes
Interactive IPA Chart - Learn Phonetic Alphabet Symbols
IPA Reader - International Phonetic Alphabet Reader
Itchy Feet Comic - Asian Script Differentiation Guide
Language Drops - Language Learning App with Thematic Vocab
Language Learners - Language Learning Forum / Community
Language Links - Language Learning Resources
Language Roadmap - Foreign Language Media Difficulty Guide
LanguageGuide - Visual Language Learning
Languagelearning.site - Language Learning Torrents
LearnWithOliver - Language Learning Flashcards
⁠Lengualytics - Comprehensible Input Tracker / Resources
LexiLogos - Language Dictionary Indexes
LingoDeer - Language Learning Lessons
⁠Lingotype - Learn Languages via Typing
LingYourLanguage - Language Identification Test
ListLang - Most Used Words in Any Language
LocalLingual - Listen to Accents
⁠Lute - Learn a Language via Reading
MORT - Learn Languages via Games
MyLanguages - Grammar / Vocabulary Language Learning
Plover - Stenography Engine
Refold - Language Learning Roadmap
ReverseDictionary - Search for Words Using Their Meanings
Sounter - Learn Languages via Music
Speechling - Language Learning Tools
Talking Dictionaries - Endangered Language Dictionary Index
TeachMeHebrew - Learn Hebrew
Tōku Reo - Māori Language Learning Show
Verbix - Verb Conjugator
Vocatra - Vocabulary Trainers
wehewehe - Hawaiian Dictionary
WordReference - Translation Dictionary
Yojik - Language Learning Courses
Yomitan - Popup Dictionary

Language Exchange

Conversation Exchange
Episoden
HiNative
InterPals
ISODN Linguistics - ISODN Linguistics Discord Community
LangX
Polyglot
RhinoSpike
Tandem
The Language Exchange Network - Language Exchange Communities

English

CEFR Lookup - CEFR Word Level Lookup
EFSET - English Proficiency Test
elllo - English Listening Lessons / Practice
Elsaspeak - Practice English Conversations
EnglishAccentMap - English Accent Videos / Map
EnglishBanana - English Learning Worksheets
EnglishCentral - English Video Lessons
ESOL - English Learning Resources
Forvo - Pronunciation Dictionary
Free4Talk - English Learning Communities
Frenglish - English Learning Books
GOA PsyTrance Livesets - DJ Livesets
⁠IELTS Liz - IELTS Test Preparation
Langeek - Grammar / Vocabulary Language Learning
Learn English Online - English Lessons
Many Things - ESL Resources
Podcasts in English - English Learning Podcasts
Spanish-English - English Learning Community / Discord
Spellcheck - English Spelling Game
TalkEnglish - Improve Spoken English
The Internet TESL Journal - Resources for EFL and ESL Teachers
WriteAndImprove - Improve English Writing
yell0wsuit - Word Learning Site
youglish - YouTube Word Pronunciations

Japanese

DelvinLanguage - Fill in Missing Japanese Words
GetKanda - Learn Kana
Japanese Pitch Accent Resources - Japanese Accent Resources
JapaneseTab - Japanese Learning Extension
JapaneseWithAnime - Learn Japanese via Anime / Manga
jidoujisho - Learn Japanese via Books
Jlpt N3 - Jlpt Exam Questions / Grammar
Learn Japanese Grammar
Memento - Japanese Learning Video Player
Minato - Japanese Courses
Nihongo con Teppei - Japanese Beginners Podcast
OJAD - Japanese Accent Dictionary
Supernative - Learn Japanese via Media
⁠VNClub - Learn Japanese via Visual Novels
yame dame - Learning Resources

Korean

Learn Korean - Korean Learning Discord ⭐
Hangul - Korean Typing Practice
Hangul Practice - Hangul Recognition Test
HowToStudyKorean - Korean Lessons / Practice
iksi - Korean Classes
Korean Trainer - Korean Numbers & Date Practice
KoreanKeyboardLearner - Korean Typing Practice
KR Dict - Korean Learning Dictionary
⁠LetsLearnHangul - Hangul Learning
Mirinae - Korean Word Breakdown
National Institute of Korean Language - Korean Dictionaries / Expression Practice
Read Korean Letters - Learn Korean Characters
Sogang - Korean Learning Lessons
TalkToMeInKorean - Korean Learning Courses
UltimateKorean - Korean Grammar / Vocab Lessons

Chinese

r/ChineseLanguage - Chinese Learning Community ⭐
Zhongwen - Learn via Classic Chinese Literature ⭐
Cantonese Sheik
Cantonese.ca - Chinese Vocabulary
Chinese Flashcards
Dictionary Variants - Dictionary of Chinese Character Variants
HackingChinese - Chinese Learning Articles
KongLongMandarin - Chinese Lessons
LexList - Learn Chinese Characters
Lindict - Chinese Dictionaries
Maorma - Chinese Tone Practice
Pleco - Chinese Flashcards / Dictionary
Stroke Order - Chinese Writing Lessons / Stroke Orders
The Chairman's Bao - Chinese Reading Practice / News Articles
Train Chinese - Chinese Learning App
YellowBridge - Chinese Learning Tools

Cantonese

Beginner's Cantonese - Cantonese Grammar Lesson
Cantonese Character Database
Cantonese Sheik
Cantonese.ca - Chinese Vocabulary
CantoWords - Cantonese Dictionary
EdUHK - Cantonese Learning / Practice
HKDict - Contemporary Cantonese-English Dictionary
Jyutping - Learn Cantonese Romanization System
Live Lingua Cantonese - Free Cantonese Courses
OnlineCantonese - Cantonese Tone Practice

European

SpanishDict - Spanish Translation Dictionaries ⭐
StudySpanish - Learn Spanish ⭐
⁠ancientgreek.jean.land - Ancient Greek Learning Site
⁠Easy Croatian - Croatian Language Learning
FluentWithStories - Learn Spanish via Stories
French Comprehensible Input - French Comprehensible Input Resources
LCSpeakFrench - Live French Lessons
Spanish-English - English Learning Community / Discord
SpanishChecker - Spanish Grammar Check
The French Tutorial - French Learning Tutorials
The People's Dictionary - Swedish Translation Dictionary
⁠TV5MONDE - French Learning Videos
Uusi Kielemme - Finnish Learning

German

DW German Course - German Learning Course ⭐
German Discord - German Learning Community ⭐
VHS Lernportal - German Learning Course / Mobile ⭐
⁠German Learning Roadmap - German Language Resources
Linguee - German Translation Dictionaries
Seedlang - German Learning App
VerbForm - Create German Verb Anki Flashcards

South Asian

Ambuda - Sanskrit Dictionaries / Texts
Learn Sanskrit - Sanskrit Lessons and Tools
Mga Nagmamarunong's Masterlist - Tagalog Learning Resources
Rekhta Dictionary - Urdu Dictionary
Sanskrit Subreddit - Sanskrit Resources / Discussion
South Asian Languages - South Asian Language Learning
UBC Sanskrit Learning Tools - UBC Sanskrit Lessons
Urdu Resources - Urdu Learning Resources
Urdupod101 - Urdu Grammar Overview / Video

Sign Languages

ASL Dictionary - American Sign Language Dictionaries ⭐
BSL Dictionary - British Sign Language Dictionaries ⭐
SpreadTheSign - Multi-Language Dictionaries ⭐
ASL Learning - ASL Learning Site
ASL-LEX - ASL Visual Connections Map / Visualization
BKS - British Key Word Signs
DeafTec - STEM Sign Dictionaries / Search
DeafVideo - ASL Vlogs + Videos / YouTube Style Site for Deaf Content
DMDb - Deaf Movie Databases / Sign Language Films / Deaf Actors
DPAN - Deaf Entertainment / News
HandyBSL - Learn / Practice BSL
⁠Helping Hands - VR-Based Sign Language Practice / Classes
International Sign - International Sign Language
Interpreter Services - Specialized ASL Dictionary
Learn BSL in SignWriting
Learn NZSL - NZSL Learning Site
NZSL - New Zealand Sign Language Dictionary
Rochester ASL / LSF - ASL / LSF / Click Dictionary
Sign AIP - Sign-Language Learning Videos
Signbank - Australian Sign Language Dictionary
SignFlow - Interactive Sign Dictionary / Learning
SignLearner - Learn ASL or BSL while Browsing Internet / Chromium
Signs - ASL Learning AI
SignSchool - ASL Learning / Dictionary
SignWriting - Sutton SignWriting System Learning + Resources
⁠SooSL - Create Custom Sign Language Dictionaries
SSC - BSL Academic Term Dictionary
Text to Sign - Convert Text to Fingerspelling in ASL or BSL
The ASL Calendar - ASL Community / Resources

Constructed Languages

Eberban - Eberban Language Learning / Focused on Simplicity, Expressivness & Regularity
Ithkuil - Ithkuil Learning / Focused on Logical Precision
⁠Languages of Arda - Guide to Tolkien Languages
Learn Na'vi - Na’vi (Avatar) Language Learning / Community / Forum
⁠lipu tenpo - Toki Pona Magazine
Lojban.io - Lojban Learning Resources / Focused on Logical Grammatical Structures
⁠ma pona pi toki pona - Toki Pona Community / Learning
⁠pona.la - Toki Pona Learning / Resources
Semantic Spaces Dictionary - Toki Pona Word Explanations / Dictionary
⁠sona pona - Toki Pona Wiki / Minimal Language
The Toaq Language - Toaq Learning Wiki / Course / Focused on Formal Logic
Toki Pona (.net) - Toki Pona Learning Sites / Minimal Language
Toki Pona Dictionary - Toki Pona Dictionaries
⁠Viossa Diskordseгver - Viossa Language Learning Community / Artificial Pidgin Language
Xextan - Xextan Language Learning / Focused on Simplicity + Ease of Learning / Wiki

Developer Learning

freeCodeCamp - Programming / Courses / Interactive ⭐
git-cheat-sheet - Git Command Lists ⭐
OpenVim - Interactive Vim Tutorials ⭐
StarSQL - SQL Lessons / Practice ⭐
90DaysOfDevOps - Learn DevOps
Advent of Code - Programming Puzzles
Awesome Courses - Dev Course Indexes
Awesome YouTubers - YouTube Dev Channels Indexes
Beej's Guide to Git - Git Guides / Tips
Beej's Guides - Programming Guides
botwiki - Learn How to Make Bots
Checki0 - Code Learning Games
CLIG - CLI Design Guide
CloudSkillsBoost - Programming Courses
CodinGame - Games to Practice Coding / Programming
Devops Exercises - DevOps Exercises
DevToolTips - Developer Tips
EggHead - Programming Courses
First Timers Only - Contribution Guide for Beginners
Git Time - Git Learning Game
Git Tutorial - Interactive Git Tutorial
Hack Club - Non-Profit High School Coding Community / Resources
Hasura - GraphQL Courses
High Assurance Rust - Software Development Guide
Interview University - Software Engineer Study Guides
⁠Josh Comeau - Programming Tutorials
Learn Git Branching - Interactive Git Branching Guide
LearningSEO.io - SEO Learning
LearnOpenGL - Learn OpenGL
LearnToCloud - Cloud Computing Guide
⁠MOOC.fi - Programming Courses
MySQL Tutorial
Oh My Git! - Git Learning Game
Path to Senior Engineer - Software Engineer Resources
PostgreSQL Tutorial
ProgrammingLearningResources - Programming Learning Resources
Python Discord - Python Learning Resources
Roadmap - Developer Roadmaps
rTorr - Vim Editor Cheat Sheets
Scratch - Beginner Programming Learning
Scrimba - Interactive Programming Learning
⁠Server Survival - Tower Defense Game for learning Cloud Architecure
SQL PD - SQL Learning Games
Swift Playgrounds - Learn Swift UI / Samples
System Design 101 - System Design Guides
systemd-by-example - systemd Learning
TechSchool - Programming Courses
The Linux Kernel - Linux Kernel Development Guides / Archives
USACO Guide - Competitive Programming Lessons
Vim Adventures - Vim Learning Game
Vim University - Vim Tips
VimTip - Vim Editor Tips
Workbench - Learn / Experiment with Gnome

Coding Tutorials

Build your own X - Advanced Coding Tutorials ⭐
calmcode - Video Tutorials
Codelabs - Project Based Tutorials
Ebook Foundation - Programming Ebooks
Guru99 - Software / Web Development
Programiz - General Coding Tutorials
Project Based Learning - Collection of Project-Based Tutorials
The SHA-256 Project - Learn to Develop SHA-256
zetcode - Programming Notes / Ebooks

Programming Languages

30 Days Of Python - Python Programming Challenge ⭐
A Byte of Python - Python Guide
AmigosCode - Java / Kotlin Guides
C++ Core Guidelines - C++ Tips
CS50 - Python Course
FutureCoder - Interactive Python Guide
⁠Genepy - Interactive Python Guide
Hitchhiker's Guide to Python - Python Guide
Learn C - C Tutorials
Learn C++ - C++ Lessons / Tutorials
Learn Next.js - Next.js Learning Resources
Learn Perl
Learn Python - Interactive Python Guide
Learn-Python - Python Playground / Cheatsheet
LearnGo - Learn Go Programming
Makefile Tutorial
Poignant - Learn Ruby
Rust Learning - Rust Learning Resources
Tea Press - Python Learning Book
Typing.io - Programming Typing Practice / Sign-Up

Web Development

FullStackOpen - Full Stack Course ⭐
JavaScript.info - JavaScript Learning Sites ⭐
LandChad - Site Development Guides ⭐
Learn to Code HTML & CSS - HTML/CSS Course ⭐
Odin Project - Programming / Courses / Interactive ⭐
PHP: The Right Way - Learn PHP ⭐
100DayCSS - CSS Challenges
33 JS Concepts - Useful JavaScript Concepts
Aquent Gymnasium - Web Dev Tutorials
Awesome Network Analysis - Network Analysis Learning
Backend Cheats - Backend Cheatsheet / Guide
backend-challenges - Backend Challenges for Practice
backendlore - Backend Coding Guides
⁠Cloud Cost Handbook - Public Cloud Hosting Cost Guide
Codepip - CSS Learning Games
Codevolution - Web Dev Video Lessons
css-animation - CSS Animation Tutorial
Dash - Web Dev Courses
DefensiveCSS - CSS Tips
DOM Events - Learn about DOM Events
Flexbox Froggy - CSS Flexbox Learning Games
Full Stack Solana Development Guide - Examples
Guess CSS - CSS Guessing Game
HEAD - HTML head Element Guide
HTMLDog - HTML/CSS and JavaScript Tutorials
JavaScript Questions - JavaScript Questions for Practice
LearnCSSGrid - CSS Grid Guides
MDN - Web Dev Learning Resources
⁠Packet.School - Interactive Networking Learning
Pixactly - Test Pixel Dimension Orientation
STPG - Startpage Creation Guides
⁠The Copenhagen Book - Web App Auth Guidelines
Untrusted - JavaScript Learning Game
Web Design in 4 Minutes - Interactive Web Design Tutorial
Web Dev for Beginners - Web Dev Course
Web Skills - Web Dev Guides
WebGL and GLSL Workshop - Interactive WebGL / GLSL Tutorial
WebRTCForTheCurious - WebRTC Guide
You Don't Know JS - JavaScript Learning Books
You-Dont-Need-jQuery - JavaScript Query Style Events Guide

Computer Science

CraftingInterpreters - Scripting Language Implementation Book ⭐
CS50 - Harvard Computer Science Course ⭐
NandGame - Computer Building Puzzle ⭐
Open Source Society University - Computer Science Roadmap ⭐
TeachYourselfComputerScience - Computer Science Book Recommendations ⭐
ApressOpen - Computer Science Books
Big-O Cheatsheet - Computer Science Complexities Cheatsheet
⁠CEMC - Computer Science Courses
Code.org - Computer Science Courses
CollegeComendium - Computer Science Courses
CompSciLib - Computer Science Tools
Computer Science Lecture Links
Computerphile - Computer Science YouTube Channels
Copetti - In-depth Console Architecture Analysis
CPU Land - What Happens when you run Programs
CS Academy - Interactive Computer Science Lessons
cs-video-courses - Computer Science Courses
CS1000 - Computer Science / Software Engineering
CSDIY - Computer Science Learning Guides
⁠CSRankings - Publication Activity of Computer Science Colleges per Topic
Eylenburg - Hardware / Software Comparisons + History
From Nand To Tetris - Computer Building Lesson
Gwern.net - Gwern Branwen Essays (AI, Psychology, & Statistics)
Modern Computer Science Curriculum - Computer Science Courses
OSDev Wiki - Operating System Dev Wiki
Papers We Love - Computer Science Research Papers
ProfessorMesser - IT Courses
Runestone Interactive - Interactive Guides
⁠SEE - Computer Science Courses
⁠System Design Academy - Large Scale System Design Learning
Tech Dev Guide - Computer Science Google Courses
Web Browser Engineering - Learn about Browser Engineering
Wi is Fi - Wi-Fi Educational Guide

Data Science

Open Source Society University - Data Science Roadmap ⭐
365Datascience - Data Science Courses
Advanced R - R Guide / Solutions
⁠Awesome Data Analysis - Data Analysis Resources
Awesome DataScience - Data Science Resources
Data Engineer Handbook - Data Engineer Resources
Data Engineering Practice Problems - Data Engineering Practice
Data Engineering Zoomcamp - Data Engineering Course
Data Science Ipython Notebooks - Learn DataScience
Deepnote - Data Science Notebook
ggplot2: Elegant Graphics for Data Analysis - ggplot2 Guide
Learn to Make Netflix Clone
Mage - Data Science Pipelines
R for Data Science - R Data Science Guide
R Packages - R Packages Guide
Visualization.info - Learn About Data Visualization
Zasper - Data Science IDE
Zero to Nix - Nix Learning Guide

Data Structures

Leetcode - Coding Practice ⭐
Solutions - Solutions, 2, 3, 4 / Company Questions / Animations / Anki Cards / Videos, 2 / Resources / Analytics ⭐
algonds - Coding Practice
Algorithm Visualizer - Visualize Code Algorithms
algorithms - Code Algorithms & Data Structures Tutorials
Algorithms Books - MIT Algorithm Focused Books
Algorithms-Cheatsheet-Resources - Code Algorithm Cheat Sheets
BuildBox - Hackathon / Challenge Communities
Codility - Coding Practice
Coding Questions - Coding Interview Questions
CSES Problemset - Collection of Algorithmic Programming Problems
Exercism - Programming Lessons
Hello Algo - Data Structures and Algorithms Course
JavaScript Algorithms - Algorithms and Data Structures in JavaScript
LintCode - Coding Practice
Memery Spy - Learn how Bytes Represent Variables
NeetCode - Coding Interview Practice
ProjectLearn - Coding Practice
Rosetta Code - Coding Problems / Solutions
VisuAlgo - Data Structure & Algorithm Visualizations

UI / UX

Can't Unsee - UI Design Test
Deceptive Patterns - Deceptive User Experience Examples
delightful humane design - Humane Design Resources
design.tips - Design Tips
Frontend Bootcamp - Frontend Workshop
Frontend Learning Kit - Frontend Learning Index
FrontEndMentor - Frontend Design Challenges
HackDesign - UI / Webdesign Courses
HTMLDog - HTML/CSS and JavaScript Tutorials
Laws of UX - Maxims / Principles for UI Designers
SitePoint - UX Design Courses & Books
UI Coach - UI Design Challenge Generator
UXTools - Learn UX Design

Cybersecurity

HackTricks - Practical Penetration Testing & Security Auditing Tips ⭐
OWASP Cheatsheet - Application Security Guide ⭐
PortSwigger Academy - Web Security Learning ⭐
Addielamarr - Learn About Cybersecurity
Awesome Sites to Test On - Cybersecurity Practice Sites
CrackMyApp - Reverse Engineering Challenges
⁠CrypTool - Interactive Cryptology Learning / Puzzles
CryptoPals - Cryptography Learning
CTF Sites - CTF Resources / Guides
Free Cyber Resources - Cybersecurity Learning Resources
Free-Official-Youtube-Content - YouTube Channel List
Hackers101 - Cybersecurity Challenges
Hacksplaining - Developer Security Lessons
How DNS Works - Learn DNS
How DNSSEC Works - Learn DNSSEC
How HTTPS Works - Learn HTTPS
John Hammond - Cybersecurity YouTube Tutorials
⁠Nightmare - Binary Exploitation Defense / Reverse Engineering Course
OverTheWire - Cybersecurity Learning Game
Pentesting Bible - Learn Pentesting
pwn.college - Cybersecurity Practice
⁠Reverse Engineering Academy - Interactive Reverse Engineering Lessons
Skills for All - Cybersecurity Courses
TryHackMe - Cybersecurity Lessons
x86re - Reverse Engineering Guides

Game Development

Brackeys - Game Dev Tutorials ⭐
r/gamedev - Reddit Community ⭐
⁠20 Games Challenge - Beginner Game Dev Challenges
8bitWorkshop - Retro Game Programming Tutorials
Amit’s Game Programming - Game Programming Guide
Awesome-Gamedev - Learning Resources
CodeWisp - Interactive Beginner Game Dev Learning
EmuDev - Emulator Development Information
⁠EmuDevs - NES Emulator Development Learning Game
From Zero To Hero - 2D Game Dev Book
Game Math - Mathematics Lessons for Game Devs
GOA PsyTrance Livesets - DJ Livesets
Graphics Workshop - Learn Computer Graphics
Level Design Book - Level Design Guide / Book
PICO-8 - Basic Game Dev Concepts / Web Version
QB64SourceCode - QB64 Game Programming Tutorials
SebastianLague - Game Dev Tutorials
Shadertoy - Real-Time Shader Dev Platform
The Book of Shaders - Fragment Shaders Guide
Trig for Games - Trigonometry Lessons for Games
⁠Vulkan Guide - vulkan Learnin Guide
Web Game Dev - Game Dev Guides

Exam Prep

AllFreeDumps - Exam Papers / Study
anthropology - UPSC Telegram Channel
CaieFinder - Previous Cambridge Test Answers
CatchaScience - IGCSE Study Notes / Resources
CrackAP - Practice AP Exams
⁠free-clep-prep - Free CLEP / DSST Exam Prep
FreeOnlineTest - Exam Practice Tests
GaryChamberlainLectureNotes - Econometrics Lecture Notes
⁠Get Sum Math - GED Prep / Practice
IBResources - International Baccalaureate Resources
IGCSE Papers - Download Past GCSE / IGCSE Papers
IndiaBIX - Aptitude Tests
⁠ISC.exe
ITExams - IT Exam Collection
⁠NCERT Books - NCERT Practice Books
nzqa.toasting - Download NZQA Past Papers
Papers.Xtreme - Test Revision Notes & Answers
Pearson's AP Universe - AP Exam Guides / Community
r/APStudents Course Survey - AP Exam Comparison Spreadsheet
r/CATpreparation - CAT Test Prep
Revisely - GCSE Exam Help
Science Career General - PhD / STEM Career Study Guides

SAT Testing

Digital SAT Resources - SAT Resources
DSATuz - SAT Practice Exams / Questions
⁠Mcelroy Tutoring - SAT Practice Exams / Questions
OnePrep - SAT Practice Exams / Questions
⁠Sat DB - SAT Practice Exams / Questions / Requires Sign-Up
SAT Question Bank - SAT Practice Exams / Questions
SAT Reading - Suggested SAT Reading
SAT Slayer - SAT Practice Exams / Questions
SAT_Files_discussion - SAT Exam Discussion
SATArchive - Previous SAT Test Archive
The SAT: Practice Tests - SAT Practice Exams / Questions

JEE / NEET

ExamSide - PYQ Solutions / Practice Environment ⭐
PhysicsWallah - JEE Lessons / YouTube ⭐
PirateHive - Guides / Study Material ⭐
DoubtNut - Exam / Solutions / Help / Ad-Bypass
Genetry - JEE Lectures
JEE Books - JEE Books Archives
JEE Hub - JEE / NEET PYQs
MarksAPP - Guides / Study Material
r/JEENEETards Index - Guides / Study Material
YouTube Lengths - Lecture Lengths / Data

Educational Tools

Excalidraw - Whiteboards ⭐
Altium - Schematics Visualizer
BachelorStudies - Bachelor Degree Search
Better Canvas - Canvas Enhancement Extension
Edu VPN - Institute Access VPN
⁠Extracurriculars.org - Extracurricular Search
FreeForStudent - Free Student Deals / Discounts
GradesFixer - Essay Samples
ImageJ - Scientific Image Analyzers
Internet-In-A-Box - Create Free Offline Learning Hotspots
nanoHUB - Nanotechnology Tools
Niche - University / School Comparisons
RateMyDorm - College Dorm Reviews
RateMyProfessor - Professor Ratings
⁠Scholarship Roar - Scholarship Database
The Chomsky Index - Noam Chomsky Content Index Tool
Wolfram Cloud - Computational Intelligence
Wordwall - Lesson Creator

Study / Research

Coursicle - Class Schedule Tracker ⭐
OpenSyllabus - Syllabus Search / Info ⭐
Refseek - Academic Search Engines ⭐
StudyKit - Quizzes / Study Material ⭐
StudyLion - Study Tracker / Productivity Discord Bot ⭐
WolframAlpha - Searchable Knowledge Base / Mobile (search) ⭐
Awesome Research - Research Tool Indexes
Brainly - Homework Help Bots / Communities / Limit Bypass
CalculateCGPA - Calculate GPA
Catma - Research Markup & Analysis Tool
cb2bib - Reference Extractors / Managers
Cheatography - Educational Cheat Sheets
Co-STORM - Generate Scientific Articles
Driftly - Class Attendance Tracker
ExpertFile - Industry / Academic Expert Search
Foam - Knowledge Management System
⁠Free Numerade Videos - Homework Help Videos
General Index - Article Metadata Mining Project
Graded - Grades Tracker
GradesCalculator - Calculate CGPA & GPA
GROBID - Extract / Organize Scientific Document Info
⁠Helium - Class Schedule Tracker / Grade Tracker / Planner
Inciteful - Find Connected Literature via Citations
LearnedEasy - Create Summaries / Quizzes from Books
Lurnby - Research Highlighting Tool
MammothMemory - Visual Memory-Based Solutions
MassiveMark - Convert LLM Chats to DOCX
⁠Modern Classroom - Improved Google Classroom Extension
mybib - Citation Generators / Chrome
OpenRefine - Data Cleaning
⁠Paper Trails - Academic Article / Paper Trackers
Papertag - Attach Digital Content to Paper
PLText - Plagiarism Checkers
Publish or Perish - Citation Analyzer
SciSpace - Research Chatbot
Scrible - Research / Writing Platform
Space Finder - UK Study Space Search
StudyStream - Online Study Groups
Taguette - Data Analysis Document Tagging
Zotero - Research Assistant

Flashcards

Add-ons - Add-ons / Decks / Resources, 2 ⭐
Anki - Flashcard App ⭐
Anki Android - Anki Mobile Apps
Flashcard Machine - Flashcard App
Flashka - Online Flashcards
Flippity - Online Flashcards
Gizmo - Flashcard App
NoteKnight - Online Flashcards
RemNote - Flashcard App
revisiondojo - Online Flashcards
SearchifyX - Search Flashcards
StudyCraft - Flashcard App
StudyLib - Online Flashcards

Calculators

GeoGebra - Graphing Calculators ⭐
Omni Calculator - Calculators ⭐
OpenCalc - Android Calculators ⭐
WolframAlpha - Calculators ⭐
Aqua Calc - Calculators
arTIfiCE - TI CE Calculator Jailbreak
CEmu - TI-84 Calculators
Cymath - Math / Algebra Problem Solvers
Kalker - Scientific Calculators
MatrixCalc - Matrix Calculator
numbr.dev - Calculators
⁠Numla - Live Calculative Notepads
PlanetCalc - Calculators
Qalculate - Desktop Calculator
QwikTape - Note Style Calculator
TICalc - TI Graphing Calculator Files

Dictionaries / Thesaurus

GoldenDict - Dictionary ⭐
Merriam-Webster - Dictionary / Thesaurus ⭐
NGrams - Word Usage Trackers ⭐
OneLook - Multi Dictionary / Thesaurus Search ⭐
The Piracy Glossary - Piracy Dictionary ⭐
UrbanDictionary - Slang Word / Phrase Dictionaries ⭐
Wiktionary - Dictionary ⭐
Affixes.org - Affixes
Cambridge Dictionary - Dictionary
EtymOnline - Etymologies
Eunoia - Words with No Translation
Feeels - Emotion Synonym Chart
Fraze.it - Sentence Search
Historical Thesaurus of English - Historical Thesaurus
Oxford English Dictionary - Dictionary / Bypass
Ozdic - Collocation Dictionary
Phrases.org - Phrase Dictionary
Phrontistery - Obscure Word Dictionary
PowerThesaurus - Thesaurus
PrideFlags - LGBT Flag Index
PyGlossary - Convert Dictionary Files
StarlingDB - Advanced Linguistics Dictionary
TheDevilsDictionary - Cynical Dictionary
Time Traveler - Find Words First Printed Usage
Unionpedia - Word Connections / Visualizers
Wordnik - Dictionary
WordSafety - Swear Word Indexes

Encyclopedias

EncycloSearch - Encyclopedia Search Engines ⭐
Wikipedia - Encyclopedia / Content List ⭐
WolframAlpha - Searchable Knowledge Base / Mobile (search) ⭐
Britannica
Citizendium
Encyclopedia
EverybodyWiki
HandWiki
InfoPlease
List of Encyclopedias - Online Encyclopedia Index
namuwiki - Korean Media
NewWorldEncyclopedia
Omniglot - Writing Systems & Languages Encyclopedia
Refdesk
Simple Wiki - Simplified Wikipedia / Auto-Redirect
Wikitia

Wikipedia Tools

CDPedia - Offline View
EntiTree - WikiData Visualization Tool
HatNote - Top Pages
Reversepedia - Page Connections
Substance - Extract Markdown
The ⁠Museum of All Things - 3D Virtual Wikipedia Museum
UrlShortener - Shorten URLs
wik - Wiki TUI
Wiki Portals - Wiki Portals Navigation
Wiki Timeline - Create Timelines from Wiki Articles
⁠WikiBoard - Pin Board Style Browser
WikiNearby - Location Search