Tech
1,559 websites · most loved first · page 45 of 65· Tonble one of these
Pouët
The central community archive of the demoscene, cataloguing decades of real-time audiovisual demos, intros, and size-lim…
POV-Ray
The home of the Persistence of Vision Raytracer, a free 3D ray tracer, with a Hall of Fame gallery of striking rendered…
PPRuNe
The Professional Pilots Rumour Network, a sprawling forum where airline pilots and industry insiders discuss careers and…
Practical Machinist
A veteran metalworking forum where machinists and hobbyists discuss lathes, mills, and shop techniques with deep technic…
Practical Wireless Tele Tennis
Grant Searle rebuilds the 1970s Practical Wireless Tele-Tennis TV game from the original magazine article, with schemati…
Precious Plastic
A global open-source community building plastic recycling machines and sharing free blueprints, guides and workspace mod…
Principles of Distributed Computing
ETH Zurich's Principles of Distributed Computing course page, collecting lecture material on the theory behind how distr…
Printables
Prusa's free 3D model platform hosting printable designs, seasonal contests, and detailed slicing settings shared by an…
PRISM Break
A curated directory of free, privacy-respecting alternatives to common apps and services, organized by platform and cate…
Privacy Guides
A nonprofit resource recommending privacy-respecting software, self-hosted tools, and secure practices, maintained by a…
PrivacyTools
A long-running guide to private alternatives for the apps you use every day, with recommendations for browsers, messenge…
Professor Messer
Free CompTIA A+, Network+ and Security+ training videos, study notes and study group replays for anyone preparing for IT…
Programming and Programming Languages
A free online textbook from Brown University that teaches programming language concepts through a custom language called…
Programming Books
An ordered, curated reading list of programming and software craftsmanship books, arranged to help developers keep growi…
Programming Design Systems
A free digital book that teaches the new foundations of graphic design through code, covering shape, color, typography,…
Programming for Cats
A joke book site for felines who want to code, starting with a silly aptitude test from the Association for Cat Machinat…
Programming in the 21st Century
James Hague's classic blog on programming, simplicity and the history of computing, with short, opinionated essays that…
Programming Time
A card game that helps kids learn to read and debug code: players draw a card, read the code, roll a d20 where marked, a…
Project Euler
A collection of hundreds of challenging mathematical and computer programming problems designed to be solved with clever…
Project Lovelace
A collection of science and math flavored programming problems aimed at beginners, with topics ranging from astronomy an…
Project Xanadu
The home of Ted Nelson's Project Xanadu, the original hypertext system founded in 1960, with its manifesto, history, tra…
ProjectLearn
A project-based way to learn programming, with guided builds across web, mobile and game development, plus machine learn…
Proton
A Swiss-based suite of encrypted email, calendar, and cloud storage tools built around end-to-end privacy, with a genuin…
ProVideo Coalition
A veteran filmmaking and post-production site covering cinematography, editing, and visual effects techniques through de…
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