OPFS Explorer

Name: OPFS Explorer
Rating: 4.17 (18 reviews)
Author: Thomas Steiner

OPFS Explorer is a Chrome DevTools extension that allows you to explore the Origin Private File System (OPFS) of a web application.

As of June 2026, OPFS Explorer has 9,000 users and a 4.17/5 rating from 18 reviews in the Developer Tools category.

Thomas Steiner Developer Tools★ Featured

Chrome Web Store ↗.crx

Users−10.0%

9.0K

9,000

Rating0%

4.17

18 reviews

Reviews0%

Version

1.9.0

Manifest V3

90-day change · In the last 90 days this extension lost 1.0K users.

History

1 snapshots

Tracking since Apr 21, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 21, 2026	10.0K	4.17	18	1.9.0
Now	9.0K	4.17	18	1.9.0

Permissions & access

Permissions: None declared
Host access: None declared

Screenshots

About

OPFS Explorer is a Chrome DevTools extension that allows you to explore the Origin Private File System (OPFS, https://fs.spec.whatwg.org/) of a web application.

To use it, open Chrome DevTools and click on the OPFS Explorer tab. The extension will automatically analyze the OPFS of the current web application and display the file hierarchy. You can then click on any file to download its contents or delete the file (which may fail if the file is locked). Note that deleting files may cause the application to break.

You can test the extension on the demo page (https://tomayac.github.io/opfs-explorer/).

The source code is on GitHub (https://github.com/tomayac/opfs-explorer).