Tech
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ProjectLearn
A project-based way to learn programming, with guided builds across web, mobile and game development, plus machine learn…
Projekt: Overflow
A tabletop board game played with RISC-V assembly, in which players write code to hack their opponent's machine, with th…
Promisees
A playground that visualizes how JavaScript promises resolve, so you can edit code and watch chains, errors and timing p…
Proton
A Swiss-based suite of encrypted email, calendar, and cloud storage tools built around end-to-end privacy, with a genuin…
ProtoType Studios
A shelf of tiny browser toys and calculators: a random color roulette, a three-value color picker, a dice probability ro…
Provector
A free online vector graphics editor that runs in the browser, offering a capable set of drawing tools for illustrators…
ProVideo Coalition
A veteran filmmaking and post-production site covering cinematography, editing, and visual effects techniques through de…
Prry
The IndieWeb digital garden of Lee Perry in Burnley, UK, with notes and longer articles on learning to code, getting fit…
PSK Reporter
A live map showing where amateur radio FT8 and PSK31 signals are being heard around the world, with filters for band, mo…
Publicnote
A free encrypted online notepad where entering any title opens a shared note that anyone with the same title can read an…
Puddle in Rain
A WebGL demo by Faraz Shaikh rendering a realistic rain puddle with raindrops rippling across its reflective surface, a…
Pulsar
A micro creative coding playground where you write short snippets and watch them render live, built for quick experiment…
PulseFeedback
A strange browser experiment that detects your pulse from webcam video and reflects it back to you as an extra-sensory e…
PulseQuaver
A minimalist browser music workstation with a pattern sequencer, three-oscillator synth, ADSR, filter and effects for ma…
puns.dev
A one-click generator of the worst computer puns on the internet - each click serves another groan-worthy tech joke with…
Pure Silicon Demo Coding
A deep dive into making a demoscene-style graphics demo on a Tiny Tapeout chip with no CPU and no memory, using just 4k…
PureCSS Lace
A painterly portrait of a woman in a lace gown drawn entirely with hand-written HTML and CSS by Diana Smith, no images a…
Putting the You in CPU
A free illustrated mini-book explaining what actually happens inside a CPU and operating system when you run a program.
PuzzleScript
An open-source engine for making tile-based puzzle games in the browser, with a gallery of clever community creations to…
pwn.college
A hands-on cybersecurity education platform with lectures and practice challenges that teach hacking skills from the bas…
PyKidos
A browser-based Python playground for children where short programs draw emoji and colors, saved locally with no account…
PyRun
A free browser-based Python IDE powered by WebAssembly that runs entirely offline, with numpy, pandas, and matplotlib an…
PySkyWiFi
A gleeful write-up of how to get free in-flight wi-fi by tunnelling data through the airline's free messaging allowance,…
Python Data Science Handbook
The full text of Jake VanderPlas's handbook, with Jupyter notebooks on IPython, NumPy, Pandas, Matplotlib, and Scikit-Le…
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