Tech
1,683 interactive pages · most loved first · page 27 of 71· Tonble one of these
Hide a Message in an Emoji
Type a secret message and it gets hidden invisibly inside a single emoji that you can paste anywhere, then decode it aga…
Hipster Logo Generator
A quick generator that builds badge-style logos in the hipster look, with adjustable shapes, icons, and text you can pre…
Histogram Maker
A free online histogram generator where you paste data or import Excel or CSV, choose bins, add a normal curve and frequ…
HN Atlas
An interactive map of Hacker News topics where bubble size shows story volume and lines connect related themes, with a t…
HN Wrapped
Type a Hacker News username and an LLM roasts your year on the site, summarizing your comments, trends and predictions i…
Hndex
A full-text search engine for articles submitted to Hacker News, so you can search what the linked pages actually say ra…
HN-TROPY
Interesting story pairings from across the Hacker News corpus: semantic outliers and surprising links between threads, b…
HomeBrew HN
A personalized Hacker News reader that builds a profile of your interests and ranks posts to match, so your morning fron…
Horcrux
A playground for Shamir Secret Sharing in the browser: split a secret into pieces, then recombine enough of them to reco…
HotSymbol
A copy-and-paste library of special characters, with hearts, stars, arrows, and other symbols you can grab with one clic…
How Browsers Work
An interactive guide explaining how web browsers work, stepping through what happens between typing an address and seein…
How Did I Get Here?
A live traceroute that shows the actual network path from your device to the server, paired with a friendly explanation…
How Does Gradient Descent Work?
An illustrated, animated companion to an ICLR paper that shows what gradient descent actually does on a bumpy loss lands…
How Generative Music Works
An interactive presentation by Tero Parviainen exploring how generative music works, with dozens of playable examples fr…
How LLMs Work
An interactive visual deep dive into how large language models work, built around Andrej Karpathy's lecture and explaine…
How Long Is My Data?
A playful calculator that measures your data the way librarians would: by how many metres of shelving it takes if you st…
How Normal Am I?
A webcam experience where face detection algorithms estimate how normal you are, showing what such software guesses abou…
How Secure Is My Password?
A tool that estimates how long a computer would take to crack the password you type, a quick way to see what makes passw…
How Stale Is Your AI
A live dashboard showing the release date and training cutoff of 20 AI models, with two ticking clocks for how old each…
Howbigg
A display comparison tool that shows monitor, TV and phone sizes side by side, with exact dimensions, pixel density and…
HTML, the Programming Language
A joke-but-working Turing-complete programming language written in HTML elements, with docs, tests and a small JavaScrip…
HTML5 Bytebeat
A music-by-math toy where you type a tiny formula and hear it turned into chiptune-like audio, with a visualizer and ple…
HTML5 Piano
A browser piano that generates all of its audio on the fly with JavaScript and data URIs, with different sound styles, a…
HTMX Playground
A browser-only playground for learning HTMX, with worked examples and an editor where you write endpoints in server.js a…
Stumble onto more like this
One click takes you to a page you didn't know you were looking for. Rate it and the next one lands closer to your taste.
Add to Browser — it's freeWorks in Chrome, Edge and Brave. No account needed.