CORS Unblock Chrome extension
CORS Unblock is a free developer tools extension for Chrome. Adds CORS headers to responses so local development requests are not blocked
- PriceFree
- CategoryDeveloper Tools
- Works inChrome, Edge, Brave (desktop)
Best for
Anyone who needs this job done in Chrome
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CORS Unblock: FAQs
What does CORS Unblock do?
Adds CORS headers to responses so local development requests are not blocked It sits in the developer tools category and runs as a Chrome extension, so it works right inside your browser.
Is CORS Unblock free?
Yes, CORS Unblock is free to use.
Do I need an account to use CORS Unblock?
Some features of CORS Unblock may require an account. Check the listing before you install if that matters to you.
Who is CORS Unblock best for?
CORS Unblock suits anyone who needs a simple developer tools tool in Chrome.
How do I install CORS Unblock?
Open CORS Unblock in the Chrome Web Store, click Add to Chrome, review the permissions in the pop-up, then click Add extension. Pin it from the puzzle-piece icon to keep it one click away.
How do I remove CORS Unblock from Chrome?
Go to chrome://extensions, find CORS Unblock and click Remove. You can also right-click its toolbar icon and choose Remove from Chrome.
Is CORS Unblock safe to use?
Check the permissions CORS Unblock requests when you install it, prefer versions that are actively updated, and review its privacy policy. Only keep extensions you actively use.
Does CORS Unblock work in Edge or Brave?
Most Chrome Web Store extensions, including CORS Unblock, can be installed in Chromium-based browsers such as Microsoft Edge and Brave. Some features may differ by browser.
Does CORS Unblock work on Android or iPhone?
No. Chrome's mobile apps don't run Chrome Web Store extensions, so CORS Unblock works on desktop Chrome and other Chromium browsers on Windows, Mac, Linux and ChromeOS.
What are the best alternatives to CORS Unblock?
There are several extensions that do a similar job. Browse the developer tools category to compare options.
Which websites does CORS Unblock work with?
CORS Unblock works on most websites you visit in Chrome.
Does CORS Unblock slow down Chrome?
Most lightweight extensions have little impact, but every extension uses some memory. If Chrome feels slow, open More tools, then Task manager, to see how much CORS Unblock uses.