.xpiTypical support level 2

Inspect XPI Extension Packages Online

See the files inside a Firefox XPI extension before installing it. Free, with no uploads, signup or software installation.

Choose a .xpi file

Your file stays on this device

Choose a file to view it in your browser. No signup or software installation needed. Your file stays on your device and is never uploaded.

What Anyfile can show

Manifest, script, locale and asset paths
Entry sizes and compression information

Limits and conditions

Permissions, signatures and compatibility are not validated
Extension scripts and native components are never executed

Need deeper capabilities?

7-Zip — Use an archive utility when you need to extract, verify or change package contents.

Independent suggestion; no partnership or endorsement is implied.

IMPLEMENTATION

Viewers responsible for this format

XPI is a ZIP-derived package used for Mozilla extensions and commonly contains manifest.json, scripts, locale files and assets. Anyfile lists its structure without installing the extension or executing JavaScript.

Archive metadata viewer

Archive metadata viewer: explore supported file formats, viewing limits and open-source credits. Your files are never uploaded.

See implementation and open-source credits

Common question

Can an XPI affect my browser when opened here?

No. Anyfile does not pass the file to the extension manager and only reads archive metadata.