Tech
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GridForm
A browser tool that generates ASCII patterns with adjustable parameters and multiple pattern types, handy for making typ…
Gridwatch
A live dashboard of Ontario's electricity grid, showing power generation by source so you can see where your power comes…
Grizzly's Reviews
Honest and detailed flashlight reviews from an enthusiast, with in-depth tests, comparisons by tag and brand, and a guid…
Grooved
A free, ad-free browser app that calibrates your turntable by listening to a record as it plays, so you can check speed…
Guess CSS
A puzzle game that shows a small frame with its HTML source and three CSS snippets, and you guess which snippet produced…
Guess My RGB
A simple colour guessing game where you try to work out the RGB values of a shown color, sharpening your feel for how re…
GUI Gallery
An exhaustive illustrated gallery documenting the look and evolution of graphical user interfaces from the 1970s to the…
GUID Lottery
A tiny experiment that tests whether GUIDs are really that hard to guess, running a lottery of random identifiers to see…
GUIdebook
A gallery preserving screenshots, icons, sounds and timelines from legacy operating systems and graphical interfaces, fr…
Gummy
A drag-and-drop way to build JavaScript programs, made to help a beginner learn to code by snapping blocks together inst…
GUN NIGHT
A small spatial programming puzzle game in which you arrange instructions to solve each level; has an epilepsy warning f…
Gwern.net
Gwern Branwen's vast collection of meticulously footnoted long-form essays on AI, statistics, psychology, and self-exper…
Gwyneth Llewelyn's Essays on Second Life
A long-running blog of essays on virtual worlds, Second Life, online communities, AI, crowd simulation, and the law and…
H - Immersion
A real-time 64kB demoscene animation by Ctrl-Alt-Test in which a submersible launched from a research vessel explores th…
H.264 is Magic
A readable walkthrough of how video compression in H.264 works, from frame differences to motion vectors, explaining why…
Hack this Shopping Cart
A playful demo showing how audio played from a phone speaker can lock and unlock the wheels of a store shopping cart, wi…
Hack.chat
A minimal anonymous chat service where any channel name becomes a room, with no accounts or sign-up and an open-source c…
Hackaday | Fresh Hacks Every Day
A daily blog and community covering hardware hacks, electronics projects, and maker culture with detailed DIY engineerin…
Hackaday.io
A project-hosting platform where electronics hobbyists document and share detailed build logs for hardware hacks and emb…
Hackconfuse
A spoof of the Hacker News front page by Kragen Sitaker that parodies tech-news culture, a quick joke page for anyone wh…
Hacker Book
Browse the entire history of Hacker News from 2006 to 2025 in your browser, served from a 22 GB SQLite database, with fr…
Hacker Dig
A custom Hacker News reader that adds summaries to stories and lets you keep notes, built for digging out ideas worth bu…
Hacker Fab
Open documentation from a project building the first open-source semiconductor fab, covering lithography steppers, spin…
Hacker Herald
A Hacker News remix where stories get crowdsourced pictures and subtitles, giving the usual link list a more visual and…
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