JavaScript Playground ⚡ Online JS Compiler

Name: JavaScript Playground ⚡ Online JS Compiler
Author: 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.

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Features & Capabilities

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.

User Growth & Download Statistics

Add-on

By:

onyxwizard

Daily users:

28 2

Version:

1.1 Last updated: 2026-02-16

Version code:

6148972

Creation date:

2026-02-12

Risk:

Permissions:

Size:

95.05KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-14

Compare stats and ranking:

Ranking

# 20,474 ▲ 537

Other rankings

#25 in javascript keyword 45 #92 in script keyword 28 ▲ 1#126 in online keyword 68 ▲ 1#158 in setup keyword 32 ▼ 4

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

onyxwizard

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/javascript-compiler/

Website:

https://github.com/onyxwizard/live-js-compiler

Is JavaScript Playground ⚡ Online JS Compiler Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

JavaScript Playground ⚡ Online JS Compiler requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

JavaScript Playground ⚡ Online JS Compiler may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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