CRX Extractor

Free plan Web

What CRX Extractor is

CRX Extractor is a free web tool for unpacking Chrome extension packages and examining the access those packages declare. Dropping a .crx file into the browser produces a .zip containing its manifest and source files. Processing happens locally in the browser, so files are not sent to the site, and the extractor can work offline without a server. Users can also paste a Chrome Web Store link or extension ID to look up a package. Catalog pages show declared permissions, sites an extension can read or change, injected pages, package contents and external hostnames found in its files. The catalog provides technical context rather than safety scores, rankings or unsafe labels. Technical details come from extension packages, while listing figures and metadata come from public Chrome Web Store listings. The project is open source under GPL v3 with code on GitHub. It has no accounts and stores nothing about users, though Google AdSense cookies follow Google's privacy policy.

Who it suits

It suits people who want to inspect Chrome extension packages locally or review declared permissions before installing. Developers may also use it to examine package contents and report extraction problems.

What it does well

Local, non-uploaded package processing
Works offline in the browser
Shows permissions and host access
Chrome Web Store lookup by link or ID
Open source under GPL v3

What to know first

Non-CRX3 packages may fail
Very large files can exhaust browser memory
Google AdSense cookies apply
Catalog does not label unsafe extensions

Verdict

CRX Extractor focuses on unpacking and describing Chrome extension packages without uploading local files. Its catalog gives useful package and permission context, but extraction can struggle with certain formats or very large files.

Facts from CRX Extractor's own pages

Advertising: The site uses Google AdSense, whose cookies are governed by Google's privacy policy. · crxextractor.com, 11 Oct 2026
Catalog approach: The catalog describes capabilities and context but does not score, rank, or label extensions as unsafe. · crxextractor.com, 11 Oct 2026
Catalog details: Catalog pages report declared permissions, sites an extension can read or change, injected pages, package contents, and external hostnames found in its files. · crxextractor.com, 11 Oct 2026
Data sources: Technical details are read from extension packages, while listing figures and metadata come from public Chrome Web Store listings. · crxextractor.com, 11 Oct 2026
License: The tool is open source under the GPL v3 license. · crxextractor.com, 11 Oct 2026
Local extraction: The extractor processes dropped .crx files in the browser and returns a .zip of the package contents. · crxextractor.com, 11 Oct 2026
Maker: The About page names Vladimir Ignatev as the maker and says the tool has been online since 2016. · crxextractor.com, 11 Oct 2026
Notable limit: The contact page notes that non-CRX3 packages and files large enough to exhaust browser memory can be interesting extraction failure cases. · crxextractor.com, 11 Oct 2026
No upload: Files unpacked with the tool are processed locally in the browser and are not transmitted to the site. · crxextractor.com, 11 Oct 2026
No verdicts: The catalog provides facts and context without scoring, ranking, or labeling extensions as unsafe. · crxextractor.com, 11 Oct 2026
Offline use: The extractor works offline because it runs in the browser without a server involved. · crxextractor.com, 11 Oct 2026
Open source: The extractor is distributed under the GNU GPL v3, with its code on GitHub. · crxextractor.com, 11 Oct 2026
Package limitation: The contact page identifies non-CRX3 packages and packages large enough to exhaust browser memory as cases that may cause extraction problems. · crxextractor.com, 11 Oct 2026
Privacy: Files processed by the extractor are never uploaded, and the site says it has no accounts and stores nothing about users. · crxextractor.com, 11 Oct 2026
Privacy and advertising: The site says it has no accounts and stores nothing about users, and that it uses Google AdSense, whose cookies follow Google's privacy policy. · crxextractor.com, 11 Oct 2026
Purpose: CRX Extractor unpacks Chrome extension packages and provides a catalog of the access extensions declare. · crxextractor.com, 11 Oct 2026
Support: Users can contact a person at [email protected] for corrections, missing pages, or extraction failures. · crxextractor.com, 11 Oct 2026
Web Store lookup: Users can paste a Chrome Web Store link or extension ID to look up an extension package. · crxextractor.com, 11 Oct 2026

Where CRX Extractor stands on Freedom251

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