Extension Downloader & Source Viewer

Name: Extension Downloader & Source Viewer
Rating: 5 (1 reviews)
Author: Muzammil

View source code of browser extensions from Chrome, Firefox, Opera, Edge, and other browsers. Works with CRX, XPI, and NEX files.

As of June 2026, Extension Downloader & Source Viewer has 12 users and a 5.00/5 rating from 1 reviews in the Developer Tools category.

Muzammil Developer Tools

Chrome Web Store ↗.crx

Users+300.0%

Rating0%

5.00

1 reviews

Reviews0%

Version

0.0.3

Manifest V3

90-day change · In the last 90 days this extension 1 version update, changed permissions.

History

11 snapshots

Tracking since Apr 1, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 1, 2026	3	—	—	0.0.2
Apr 9, 2026	4	—	—	0.0.2
Apr 20, 2026	8	—	—	0.0.2
Apr 25, 2026	8	—	—	0.0.2
May 2, 2026	8	—	—	0.0.2
May 9, 2026	9	—	—	0.0.2
May 13, 2026	8	—	—	0.0.2
May 19, 2026	13	5.00	1	0.0.2
May 26, 2026	13	5.00	1	0.0.3
Jun 2, 2026	10	5.00	1	0.0.3
Jun 8, 2026	9	5.00	1	0.0.3
Now	12	5.00	1	0.0.3

Changelog

May 19, 2026

permissions

storage, tabs, storage, contextMenus, downloads

tabs, storage, contextMenus, downloads

Permissions & access

Permissions: tabsstoragecontextMenusdownloads
Host access: *://clients2.google.com/service/update2/crx*, *://clients2.googleusercontent.com/crx/download/*, *://edge.microsoft.com/extensionwebstorebase/v1/crx*, *://addons.mozilla.org/*, *://*.addons.mozilla.org/*, *://addons.cdn.mozilla.net/*, *://addons.allizom.org/*, *://*.addons.allizom.org/*, *://addons-dev.allizom.org/*, *://addons-dev-cdn.allizom.org/*, *://addons.thunderbird.net/*, *://addons-stage.thunderbird.net/*, *://addons.opera.com/*, *://addons-extensions.operacdn.com/*

Screenshots

Extension Downloader & Source Viewer screenshot 1

Extension Downloader & Source Viewer screenshot 2

About

A modern, redesigned Chrome Extension Source Viewer & Downloader extension allows you to view and download the source code of Chrome extensions directly from the Chrome Web Store and other sources.

Features
📦 Download extensions as ZIP files
👁️ View extension source code in a beautiful interface
🔍 Search within files with regex support
📂 File filtering by type (code, markup, images, locales, misc)
🎨 Syntax highlighting for various languages
📸 Image viewer with zoom controls
📋 Copy code to clipboard
💾 Download individual files
🎯 New Modern Features:

⚡ Lightning-fast performance with modern React
🎨 Beautiful, responsive UI with TailwindCSS
🔧 Built with WXT for better developer experience
💪 Full TypeScript support
🎯 Better file organization and code structure
🌈 Improved syntax highlighting
📱 Better mobile-responsive design

Usage
- Via Extension Icon
-- Navigate to any extension on the Chrome Web Store
-- Click the CRX Viewer extension icon
-- Choose to either:
-- Download as ZIP: Directly download the extension
-- View Source: Open the source code viewer

- Via Context Menu
-- Right-click anywhere on a Chrome Web Store extension page
-- Select "View extension source code" or "Download extension as ZIP"

- Via Source Viewer
-- The source viewer provides:
-- File List: Browse all files in the extension
-- Filter Files: Filter by filename or type (code, markup, images, etc.)
-- Search: Search for text across all files
-- Syntax Highlighting: Automatic syntax highlighting for code files
-- Image Preview: View images with zoom controls
-- Download: Download the entire extension or individual files