HTML Viewer & Live Renderer
Paste HTML/CSS/JS, get an instant live preview — no signup
What it does
A small, sandboxed code playground right in your browser — paste HTML, CSS and JS and see it rendered instantly. No signup, no install, no account needed. Perfect for quick prototypes, testing snippets, or previewing email/landing page HTML before shipping it.
A free online HTML CSS JS playground and code sandbox — paste code and see an instant sandboxed live preview in your browser. No signup.
An HTML/CSS/JS playground renders pasted code in an isolated sandbox instead of just displaying it as text — so you see the actual result, interactive elements included. Paste HTML, CSS and JS and see an instant rendered preview, no signup or install. Why a sandboxed preview beats copy-pasting into a file Testing a small HTML/CSS/JS snippet usually means creating a throwaway file, opening it in a browser, and repeating that loop for every change — or reaching for a full code editor when all you needed was to see whether one layout idea actually works. A live, in-browser sandbox skips both: paste, see the result immediately, adjust. For example, pasting <button>Click me</button> in HTML and…from frostrank.com
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Life & fun · 10d ago · louisabraham.github.io
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Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io
I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 17d ago · simedw.com