# OPFS Finder — Browse files like Finder

> Browse browser's files ====================== A tiny Finder for the files every website quietly keeps inside your browser. Nothing new to learn — it just feels like home.

Canonical page: [https://chrome-stats.com/d/opfs-finder](https://chrome-stats.com/d/opfs-finder)

## Overview

- **ID:** `opfs-finder`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** tseijp
- **Category:** web-development
- **Version:** 0.1.0
- **Last updated:** 2026-06-12
- **First published:** 2026-06-09
- **Size:** 65 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/opfs-finder/)
- **Website:** [https://opfs-finder.tsei.jp/](https://opfs-finder.tsei.jp/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/opfs-finder/privacy/](https://addons.mozilla.org/firefox/addon/opfs-finder/privacy/)

## Description

opfs-finder

Browse your browser's hidden files — exactly like the Finder.

Every website quietly stores files inside your browser. Until now, you
needed DevTools to even see them. opfs-finder opens that hidden storage in a
window you already know how to use — icons, list, column, and gallery views,
drag &amp; drop, rename, tag, search. Nothing new to learn. It just feels like
Finder.

Links
<ul><li>npm package: <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/996ee4d3c7d5374c8448167126e6bcff64e0f8693e3beb4ad776dd8fb822951b/https%3A//www.npmjs.com/package/opfs-finder" rel="nofollow">https://www.npmjs.com/package/opfs-finder</a></li><li>Documentation: <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/d8ff6cdd1d25c992fa6407b43cd98651ba78060a70f2eeb059d1bf7b4eeeba65/https%3A//opfs-finder.tsei.jp/" rel="nofollow">https://opfs-finder.tsei.jp/</a></li><li>Chrome Web Store: <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/697e9c191cc7282705ab889c02bbe617536c33360d4d1b9a2b7984e937410fd0/https%3A//chromewebstore.google.com/detail/opfs-finder/goembbknolimgobgjlpmoldlofadgkon" rel="nofollow">https://chromewebstore.google.com/detail/opfs-finder/goembbknolimgobgjlpmoldlofadgkon</a></li></ul>
Two ways to use it

As a Chrome extension

Click the toolbar button on any site. The Finder opens, showing that site's
files. Browse, preview, rename, move, and delete — wherever you are, the same
familiar window.

Install from the Chrome Web Store:

<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/697e9c191cc7282705ab889c02bbe617536c33360d4d1b9a2b7984e937410fd0/https%3A//chromewebstore.google.com/detail/opfs-finder/goembbknolimgobgjlpmoldlofadgkon" rel="nofollow">https://chromewebstore.google.com/detail/opfs-finder/goembbknolimgobgjlpmoldlofadgkon</a>

As an npm package

Add file management to your own app in one line. Your users get a real Finder
for their data — no need to build one yourself.

<code>pnpm install opfs-finder

import finder from 'opfs-finder'

&lt;button onClick={() =&gt; finder()}&gt;
  Manage my files
&lt;/button&gt;
</code>

That's it. One import, one call, and your app has a Finder.

What you get
<ul><li>Four views — icons, list, column, and gallery, just like macOS.</li><li>Full file actions — open, create, rename, duplicate, copy, move, delete.</li><li>Drag &amp; drop — move files around, or drop files in from your desktop.</li><li>Tags, favorites, search — organize and find files the way you already do.</li><li>Preview anything — even raw binary, shown as readable hex.</li></ul>
No setup. No config. It remembers how you like things and stays out of your
way.

Supported browsers

opfs-finder runs on every modern browser. More — Can I use…: <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/a612fe3e2f71930050c578c561bbcd1d73015f78949f4b44532d2d3c97ef84a7/https%3A//caniuse.com/wf-origin-private-file-system" rel="nofollow">https://caniuse.com/wf-origin-private-file-system</a>

Chrome   108+
Edge     108+
Firefox  111+
Safari   16.4+
Opera    94+

## Rankings

- #134,439 — Overall

## Permissions and access

### Permissions

- `activeTab`
- `scripting`

## Safety

- **Risk impact:** Very low risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/opfs-finder)
