Whitespace.
See who already built your idea — and the space they left open.

CLUSTER CODE-BROWSER-EDITOR · 10 ENTRIES · EARLIEST ENTRY unknown

Real-time HTML/CSS/JS editors

This cluster consists of browser-based code editors focused on writing HTML, CSS, and JavaScript with instant preview. The dated history is too thin to read a shape from — only 4 dated entries exist before the index start, and 3 members have no source date. Traction leaders, all at 0 stars, are scriptharbor, HTML-Edit-light, and UImaneger.

Entry timeline

ENTRY TIMELINE

OCT 2022: 1AUG 2025: 1APR 2026: 1JUN 2026: 1AUG 2026: 3SEP 2026: 3
OCT 2022SEP 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 3 ai-built · 7 unlabelled

Operator · 5 hobby · 1 open source · 4 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 10 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01cekWeb0★17 days—hobbyWeb app for students to write HTML and CSS with live preview and get rubric-based feedback on their work.
  2. 02scriptharbor0★1 molivehobbyWeb app that provides a browser-based editor and preview for building static sites and deploying them to a content delivery network.
  3. 03HTML-Edit-light0★1 mo—hobbyAn HTML editor with live preview that highlights source lines when clicking elements in the preview.
  4. 04UImaneger0★2 mo—hobbyLocal editor that lets users select UI elements and modify them with natural language while previewing changes live.
  5. 05htmleditor0★6 mostale—ai-builthobbyWeb-based HTML editor that lets users paste code and instantly preview, with visual click-to-edit to sync back to code and multi-language UI.
  6. 06Playhouse0★10 mostaleliveopen sourceWeb development playground for prototyping and learning HTML, CSS, and JavaScript with live preview.
  7. 07https-github.com-JuGoMash-html-live-maker0★1 yrabandoned—ai-builtWeb tool that lets users create and preview HTML pages in real time.
  8. 08HTML Compiler - Online HTML Editor0★unknownliveai-builtOnline HTML editor that lets users write HTML, CSS, and JavaScript code and preview results instantly.
  9. 09HTMLetGo 🚀 - Live Code Preview0★unknownliveWeb app that lets users write and preview HTML, CSS, and JavaScript in real-time.
  10. 10HTML Compiler — Online HTML/CSS/JS Editor0★unknownliveBrowser-based code editor that lets users write and preview HTML, CSS, and JavaScript in real time.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.