CORS Unblock

Name: CORS Unblock
Rating: 4.59 (17 reviews)
Author: Jamsheer

Temporarily unblock CORS for development and testing purposes

As of May 2026, CORS Unblock has 20,000 users and a 4.59/5 rating from 17 reviews in the Developer Tools category.

Jamsheer Developer Tools

Chrome Web Store ↗.crx

Users0%

20.0K

20,000

Rating−4.6%

4.59

17 reviews

Reviews+6.3%

Version

1.3

Manifest V3

History

3 snapshots

Tracking since Apr 21, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 21, 2026	20.0K	4.81	16	1.3
May 6, 2026	20.0K	4.81	16	1.3
May 17, 2026	20.0K	4.81	16	1.3
Now	20.0K	4.59	17	1.3

Permissions & access

Permissions: storagedeclarativeNetRequestdeclarativeNetRequestFeedback
Host access: <all_urls>

Screenshots

About

Unblock CORS (cautiously!) for Development & Testing

Need to temporarily unblock CORS restrictions on a trusted website for development or testing? This extension allows you to do that with a "SINGLE CLICK", but be aware of the security implications. Unblocking is temporary and won't persist across page reloads. Use responsibly on trusted sites only!

Key Features:

Simple one-click unblocking.
Clear warnings about security risks and temporary nature of changes.
Designed for developers and testers (use with caution on production websites).
This extension is a valuable tool for developers and testers, but it's crucial to use it responsibly and understand the potential security risks.

Completely free and NO ads!

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