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CORS-Tester

CORS Doesn't Have to Be Hard!

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#1853in Developer Tools
–In stores

Description

Test CORS on your API URL with this online CORS Tester. Verify CORS policies, check headers, and get actionable insights to fix issues. Ensu…

Preview

CORS-Tester screenshot 1

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CORS-Tester FAQ

What is CORS-Tester?

Test CORS on your API URL with this online CORS Tester. Verify CORS policies, check headers, and get actionable insights to fix issues. Ensure cross-origin resource sharing works effortlessly!

Do I need to download CORS-Tester?

No. CORS-Tester runs in your browser at cors-error.dev, so there's nothing to install.

What are the best CORS-Tester alternatives?

Popular alternatives to CORS-Tester include Lost Pixel, Percy and Argos. See all CORS-Tester alternatives