Extension Source Downloader

Download the source code for chrome extensions via toolbar popup in .zip or .crx formats.

Extension Source Downloader is a handy Chrome extension that allows users to download the source code of any Chrome extension directly from the toolbar popup. Simply input a valid extension URL or navigate to the Chrome Web Store and open the popup to automatically fetch the active tab's extension URL.

Users can then download the extension's source in either .zip or .crx formats. A progress bar indicates the current download status, and the files are saved to your default download folder. This tool is perfect for developers, researchers, and enthusiasts looking to analyze or back up Chrome extensions. Support and bug reporting are available through the addon's homepage.

Manifest V3 Extension Developer Tools Productivity
By:
leocompson
Users:
20,000
Rating:
4.17
(23)
Version:
0.1.4 Last updated: 2024-11-06
Creation date:
2020-11-23
Risk:
High risk impact Very low risk likelihood
Permissions:
  • storage
  • activeTab
  • downloads
Host permissions:
  • *://clients2.google.com/service/update2/crx*
  • *://clients2.googleusercontent.com/crx/download/*
Size:
22.95KB
Email:
le*****@gmail.com
Full description:
See detailed description
Source:
Chrome Web Store
Data ingested on:
2025-07-19
Setup email notification for Extension Source Downloader

User reviews

The Extension Source Downloader is appreciated for its simplicity and effectiveness in downloading Chrome extensions as CRX or ZIP files, especially supporting other browsers like Brave. Users find it functional and useful for their needs. However, there are common issues including file naming errors (undefined names), CRX files not being immediately installable, and lack of convenient features like a context menu. While mostly working well, some users report inconsistency, and a few prefer alternative extensions.
Pros
  • Effectively downloads extensions as CRX or ZIP files.
  • Simple and easy to use with no major bugs reported.
  • Works well with browsers other than Chrome, like Brave.
  • Allows conversion of plugins into ZIP files for unpacking.
  • Users find it useful for their needs and it functions as expected.
Cons
  • CRX files downloaded are not immediately installable in some cases.
  • File naming issues, such as undefined names for CRX files, making it confusing.
  • Lack of a context menu for easier access and usability.
  • Inconsistent performance for some users; at least one reported it didn't work.
  • Preference by some users for alternative extensions with similar functionality.
Recent reviews
Sir, Thank you for this extansion. this is very usefull extension for me. no bug in this extension.
by Pa*****, 2025-04-14

Works perfect , mises browser android
by To*****, 2025-04-14

Pretty random but it does exactly what I needed.
by Do*****, 2025-03-29
View all user reviews ›

Extension safety

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.

Extension Source Downloader requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Request access to the following domains: {{requestedDomains}}
  • Medium ****** ********** ** ******** ********** *** ********* ******* ******** ****** ******** ****** ********
Risk likelihood
Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. 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 Chrome extension.

Extension Source Downloader has earned a good reputation and can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* ** ****** ** ********
  • Good **** ********* *** **** **** *******
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