CRX viewer
To open a CRX file, drop it in the box below. It opens straight away, even with no extension or the wrong one. Your browser opens it on your device: nothing is uploaded.
Open in
Opened on this device, never uploadedDrop or paste another file at any time
What you see
| CRX in the viewer | |
|---|---|
| Header | CRX 2 and 3 skipped to the ZIP |
| Permissions | Listed |
| Safety | Read from its headers only: nothing in it is run |
| Extensions | .crx |
| Upload | None: opened on your device |
What is a CRX file?
In short
A CRX is a Chrome extension: a short signed header followed by a ZIP of the extension.
The extension’s name, version and permissions from manifest.json, then every file.
How to open a CRX file
- Add your CRX. Drop the file in the box, choose it or paste it.
- Look at it. The extension’s name, version and permissions from manifest.json, then every file.
- Take it further. Download any file from inside an archive, or open another file.
Questions
Drop the .crx here: its permissions and host permissions are listed.
No. The package is only read: its manifest and its list of files. Nothing in it runs, and nothing is uploaded.
No. The viewer runs in your browser and opens the file on your device. Nothing is sent anywhere.