JavaScript Playground ⚡ Online JS Compiler by onyxwizard

**Write and run JavaScript code instantly.** Skip the setup and open a distraction-free playground with a single click. Test functions, debug concepts, or learn new features right in a dedicated popup. just pure, instant JS code execution.

Available on Firefox for Android™

0 (0 reviews)

28 Users

Download Firefox and get the extension

Download file

Scan the QR code to open this extension in Firefox for Android

About this extension

A lightweight, cyber‑themed JavaScript playground that lives in your browser. Click the toolbar icon → a new tab opens with a side‑by‑side editor and output panel.

✅ Features:
• Real‑time evaluation – auto‑runs as you type (toggle on/off)
• Manual run via button or Ctrl+Enter
• Full JavaScript syntax highlighting (CodeMirror with Darcula theme)
• Console.log capture – shows output in the right panel
• Error display with clear visual feedback
• Persistent storage – your code is saved automatically
• Clean, responsive dark cyber design

No tracking, no data collection, no external servers – everything runs locally in your browser.

Rated 0 by 0 reviewers

JavaScript Playground ⚡ Online JS Compiler by onyxwizard

Required permissions:

Data collection: