ZumiFiles CORS Helper

by ZumiLabs · zumilabs.com · Developer Tools

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Transparently proxies local /api/download?url=... requests for ZumiFiles to enable cross-origin remote file previewing.

Users

+2 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#226K

#189K among extensions

Version

1.0.0

updated 4 Aug 2026

Users

monthly, 2 months

Latest, 16 Oct 2026: 7 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 months

Latest, 16 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About ZumiFiles CORS Helper

ZumiFiles CORS Helper is a single-purpose developer utility companion for ZumiFiles (https://zumilabs.com/tools/zumifiles/). When loading remote files (such as 3D models, PDF documents, or CSV spreadsheets) via public URLs, strict browser Cross-Origin Resource Sharing (CORS) rules often prevent web applications from reading file streams directly. ZumiFiles CORS Helper uses Chrome's native Declarative Net Request engine to add permissive CORS headers (`Access-Control-Allow-Origin: *`) exclusively to HTTP requests initiated by ZumiFiles (`zumilabs.com`, `localhost`, and `127.0.0.1`). Key Features: - Seamless Remote File Previewing: Load remote 3D models (.glb, .obj), PDFs, images, and spreadsheets directly into ZumiFiles. - Scoped Initiator Rules: Header modifications and download redirects only apply to requests initiated by ZumiFiles domains (`zumilabs.com`, `localhost`, `127.0.0.1`). - Zero Data Storage & Tracking: Does not store, track, log, or transmit any user browsing activity or file data. - High Performance: Operates purely via Chrome's native declarative net rules without background service worker overhead. How to Use: 1. Install ZumiFiles CORS Helper. 2. Open ZumiFiles (https://zumilabs.com/tools/zumifiles/). 3. Click "Load Remote URL" and paste any public file link. ZumiFiles will fetch and render the remote file instantly! Privacy Guarantee: ZumiFiles CORS Helper operates completely locally inside your browser. It does not collect, store, or transmit personal data or browsing activity to any external server. Support & Feedback: For technical support or bug reports, contact ZumiLabs at help@zumilabs.com or visit https://zumilabs.com/tools/zumifiles/.