HTML Runner by Mohammad Shaklain

Run HTML, CSS, and JavaScript instantly in a new tab — no server, no build, no setup.

Available on Firefox for Android™

1 (1 review)

49 Users

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About this extension

HTML Runner is a lightweight Firefox extension that lets you write and preview HTML, CSS, and JavaScript code instantly — all in your browser.

Features:
- Clean editor with HTML / CSS / JS tabs
- Live preview in the same tab (iframe-based)
- Light & dark theme
- Zero dependencies — runs entirely offline
- No data collection, no telemetry

Perfect for learners, teachers, and developers who want a quick sandbox to test code snippets.

Rated 1 by 1 reviewer

HTML Runner by Mohammad Shaklain

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