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Preview of Extension Source Viewer & Downloader

Extension Source Viewer & Downloader by Muzammil

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

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Extension Metadata

Screenshots
Extension DownloaerExtension Downloaer
About this extension
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
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Permissions and data

Required permissions:

  • Download files and read and modify the browser’s download history
  • Access browser tabs
  • Access your data for sites in the addons.mozilla.org domain
  • Access your data for sites in the addons.allizom.org domain
  • Access your data for clients2.google.com
  • Access your data for clients2.googleusercontent.com
  • Access your data for edge.microsoft.com
  • Access your data for addons.mozilla.org
  • Access your data for addons.cdn.mozilla.net
  • Access your data for addons.allizom.org
  • Access your data for addons-dev.allizom.org
  • Access your data for addons-dev-cdn.allizom.org
  • Access your data for addons.thunderbird.net
  • Access your data for addons-stage.thunderbird.net
  • Access your data for addons.opera.com
  • Access your data for addons-extensions.operacdn.com

Data collection:

  • The developer says this extension doesn't require data collection.
Learn more
More information
Add-on Links
  • Support site
  • Support Email
Version
0.0.2
Size
706.76 KB
Last updated
14 days ago (Feb 27, 2026)
Related Categories
  • Web Development
  • Privacy & Security
  • Appearance
License
All Rights Reserved
Version History
  • See all versions
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