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CORS Unblock

4.2(

19 ratings

)
ExtensionDeveloper Tools20,000 users
Item media 1 (screenshot) for CORS Unblock

Overview

Temporarily unblock CORS for development and testing purposes

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

4.2 out of 519 ratings

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Details

  • Version
    1.4
  • Updated
    June 12, 2026
  • Offered by
    Jamsheer
  • Size
    12.45KiB
  • Languages
    English
  • Developer
    Jamsheer Moidu
    Chalissery Palakkad, Kerala 679536 IN
    Email
    jamsheermoidu@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

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The developer has disclosed that it will not collect or use your data.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

Related

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3.8

Allow cross-domain requests by override Origin and CORS headers. Log/capture XmlHttpRequest API calls for debugging and analytics.

CORS Bypass

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when enabled, add the header 'Access-Control-Allow-Origin: *' to the response to resolve CORS errors.

Anti-CORS, anti-CSP

4.1

Enable cross origin requests blocked by CORS or CSP. Disable CORS and CSP in selected hostnames, preserve security of other websites

CORS Unblock

4.8

Easily bypass CORS errors during development with a simple ON/OFF toggle.

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4.6

Easily add (Access-Control-Allow-Origin: *) rule to the response header globally.

Cross Domain - CORS

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Cross Domain will help you to deal with cross domain - CORS problem. This is tool helpful when face with cross domain issue.

CORS Unblock

4.1

No more CORS error by appending 'Access-Control-Allow-Origin: *' header to local and remote web requests when enabled

SA CORS Unblock

2.3

An extension to help to bypass CORS security errors on superannotate domains

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3.4

Easily add (Access-Control-Allow-Origin: *) rule to the response header.

CORS Unblocker

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Temporarily bypass CORS restrictions to streamline development and testing workflows.

CSP Unblock

4.0

No more Content-Security-Policy limitations. This extension removes all CSP-related headers during website testing.

Allow CORS

4.8

Enable this extension to bypass CORS errors and make API calls from different domains seamlessly

Moesif Origin/CORS Changer & API Logger

3.8

Allow cross-domain requests by override Origin and CORS headers. Log/capture XmlHttpRequest API calls for debugging and analytics.

CORS Bypass

3.0

when enabled, add the header 'Access-Control-Allow-Origin: *' to the response to resolve CORS errors.

Anti-CORS, anti-CSP

4.1

Enable cross origin requests blocked by CORS or CSP. Disable CORS and CSP in selected hostnames, preserve security of other websites

CORS Unblock

4.8

Easily bypass CORS errors during development with a simple ON/OFF toggle.

CORS Bypass : Access-Control-Allow-Origin

4.6

Easily add (Access-Control-Allow-Origin: *) rule to the response header globally.

Cross Domain - CORS

3.8

Cross Domain will help you to deal with cross domain - CORS problem. This is tool helpful when face with cross domain issue.

CORS Unblock

4.1

No more CORS error by appending 'Access-Control-Allow-Origin: *' header to local and remote web requests when enabled

SA CORS Unblock

2.3

An extension to help to bypass CORS security errors on superannotate domains

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