Extension Downloader & Source Viewer icon

Extension Downloader & Source Viewer

by Muzammil Β· muzammil.work Β· Developer Tools
Established publisherManifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

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

Users
45
+11 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#113K
#94K among extensions
Version
0.0.3
updated 14 May 2026

Users

monthly, 8 months
02245Feb 2026Jul 2026Oct 2026
Latest, 16 Oct 2026: 45 usersMove the mouse over the chart for any month

Ratings count

monthly, 8 months
001Feb 2026Jul 2026Oct 2026
Latest, 16 Oct 2026: 1 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Extension Downloader & Source Viewer

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 πŸ“¦ Download extensions as ZIP files πŸ‘οΈ View extension source code in a beautiful interface πŸ” Search within files with regex support πŸ“‚ File filtering by type (code, markup, images, locales, misc) 🎨 Syntax highlighting for various languages πŸ“Έ Image viewer with zoom controls πŸ“‹ Copy code to clipboard πŸ’Ύ Download individual files 🎯 New Modern Features: ⚑ Lightning-fast performance with modern React 🎨 Beautiful, responsive UI with TailwindCSS πŸ”§ Built with WXT for better developer experience πŸ’ͺ Full TypeScript support 🎯 Better file organization and code structure 🌈 Improved syntax highlighting πŸ“± 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

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days+11+32.4%00.00
6 months+37+462.5%+1+5.00

Version history

3 versions recorded
0.0.314 May 2026
0.0.228 Feb 2026
0.0.117 Feb 2026

Details

Category
Developer Tools
First seen
17 Feb 2026
Size
674 KB
Languages
en
Pricing
Free
Extension ID
aoocoigacemjfnkephodgfomcmclifpj

Permissions and risk

Elevated riskimpact 4, likelihood 2
Permissions
tabsstoragecontextMenusdownloads
Site 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/*and 4 more

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