CORS Unblock icon

CORS Unblock

by Jamsheer · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Temporarily unblock CORS for development and testing purposes

Users
20K
0 in 30 days
Rating
4.2 / 5
unchanged in 30 days
Ratings
19
0 in 30 days
Store rank
#6,288
#5,436 among extensions
Version
1.4
updated 12 Jun 2026

Users

monthly, 2 years
010K20KJul 2024Sep 2025Oct 2026
Latest, 15 Oct 2026: 20,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years
01019Jul 2024Sep 2025Oct 2026
Latest, 15 Oct 2026: 19 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 CORS Unblock

CORS Unblock – Disable CORS for Development & Testing The easiest way to disable CORS restrictions in Chrome during local development and API testing. Toggle CORS off instantly with one click, a keyboard shortcut, or a right-click — no browser restart, no command-line flags needed. KEY FEATURES: - One-click toggle to enable/disable CORS bypass - Keyboard shortcut: Alt+Shift+C (Option+Shift+C on Mac) - Right-click the extension icon to toggle without opening the popup - Toolbar icon and badge show live status — green (unblocked) or grey (blocking active) - State persists across page reloads until you turn it off - Auto turn-off when browser closes — never accidentally leave it on - Supports localhost and private network requests (192.168.x.x etc.) - Exposes response headers so JS can read them after unblocking - Built-in security reminder so you never forget to turn it off BUILT FOR DEVELOPERS Perfect for frontend developers, QA engineers, and API testers working with cross-origin requests during local development, staging, or debugging sessions. USE RESPONSIBLY Disabling CORS bypasses an important browser security mechanism. Only use on trusted sites and always turn it off when done. The auto turn-off on browser close ensures you're never left exposed. Completely free. No ads. No data collection. For JSON Validation and formatting visit: https://jsonvalidator.onrender.com

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days0+0.0%00.00
6 months0+0.0%+3−0.60
1 year+10K+100.0%+8−0.79

Chrome Web Store search rankings

Where CORS Unblock appears when people search the store, with the 30 day change
Search phrasePosition30 days
unblock#9−5
development#92new

Version history

3 versions recorded
1.412 Jun 2026
1.326 Jun 2025
1.214 Jul 2024

Details

Category
Developer Tools
First seen
14 Jul 2024
Size
12 KB
Languages
en
Pricing
Free
Extension ID
hadoojkfknbjgoppkecpgamiajljiief

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
storagedeclarativeNetRequestcontextMenus
Site access
<all_urls>
Can read and change data on every website you visit.

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