Providers
Every pick links to the provider's own site. These 31 have three or more picks; another 230 appear once or twice — all credited on Sources.
YouTube educators
Independent educators and institutions publishing free video lessons.
42 picks
PartnerCoursera
Online courses, specializations, and professional certificates from universities and companies such as Stanford, Google, and Meta.
30 picks
PartnerUdemy
A marketplace of individually purchased video courses taught by independent instructors.
18 picksMasterClass
Cinematic video classes taught by famous practitioners — chefs, writers, musicians, photographers, and business leaders.
14 picks
Stanford University
Free course websites, lecture videos, and resources from Stanford courses and programs, including CS229, CS231n, and CS224N..
9 picks
PartnerCodecademy
Interactive coding lessons in the browser with no setup.
7 picks
Free courses and guides from Google, including the Machine Learning Crash Course, Skillshop, and Material Design..
6 picksO'Reilly Media
Technical book publisher.
6 picks
The Rust Project
Official Rust learning resources: The Book, Rust by Example, Rustlings, the Rustonomicon, and more..
6 picksApple Developer
Apple's official tutorials, documentation, design guidelines, and WWDC session videos..
5 picks
freeCodeCamp
A nonprofit with a free, project-based coding curriculum and certifications.
5 picksMIT OpenCourseWare
Free lecture notes, problem sets, exams, and videos from thousands of MIT courses.
5 picks
The Go Project
Official Go resources: the Tour of Go, Effective Go, the Go blog, and the language specification..
5 picks
Duolingo
Free, gamified language app good for daily habit-building and vocabulary; best combined with real listening and speaking practice..
4 picksHarvard CS50
Harvard's family of free computer science courses led by David J.
4 picks
Kaggle
Free, short, hands-on data science courses in the browser, plus public datasets and competitions..
4 picks
Khan Academy
Free, nonprofit lessons and practice from arithmetic to computer science and personal finance.
4 picksOpenLearn (The Open University)
Free short courses from the UK's Open University across languages, money, science, and more.
4 picks
Python.org
The official Python documentation, tutorial, packaging guide, and developer's guide..
4 picks
PartnerRosetta Stone
Immersion-based language learning app with picture-driven lessons and speech recognition, covering more than twenty languages..
4 picks
PartnerSkillshare
Subscription platform of short, project-based classes, strongest in design, illustration, photography, and video..
4 picks
TED
Free talks from TED conferences, plus the paid TED Masterclass course on developing talks..
4 picksAdobe
Official tutorials for Illustrator, Lightroom, Premiere Pro, and other Creative Cloud apps..
3 picks
Coffee Break Languages
Structured podcast-based language courses with a teacher and a learner.
3 picks
Exercism
Free, open-source coding practice with optional human mentoring, across more than sixty languages..
3 picks
Figma
The collaborative design tool, plus its official tutorials, blog, and DesignSystems.com publication..
3 picks
Harvard University
Freely available course materials and resources from Harvard faculty and programs..
3 picks
MDN Web Docs (Mozilla)
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3 picks
Swift.org
The official home of the Swift language, including The Swift Programming Language book and Swift Evolution..
3 picks
The Mom Test
Rob Fitzpatrick's short book on customer conversations, recommended across our founder, product, and sales feeds..
3 picksY Combinator
The startup accelerator's free public resources: Startup School, the Startup Library, and standard financing documents..
3 picks