CORS Policy Tester
v1.0.0Build and test Cross-Origin Resource Sharing (CORS) headers, origins, and preflight responses.
Browser-based Cors Tester. All operations run locally — no data is sent to a server.
How to use- →Enter your input data and configure the operation settings.
- →Click Run to compute the result.
- →Use the Copy button to copy the output.
- →Try a preset from the example picker to see sample input.