CORS Config Generator — Browser Developer Tool

Developer

CORS Config Generator is a browser-based developer workflow tool that generates example cors response headers from a request scenario.

CORS Config Generator

Runs in this browserInput is processed only in this browser. It is not sent to or stored on a server.

This is a draft, not a security guarantee. Review real auth and cookie policy before production.

CORS scenario

Example response headers

Next actions

HTTP Header Checker http-request-builder Security Headers Checker

What is it

CORS Config Generator handles repetitive development tasks such as API setup, config conversion, and test payload drafting locally in the browser. Input is not sent to a server, and the output can be copied or saved as a text file.

headers = origin + methods + headers + credentials policy

How to use

1Load the sample or paste your input.
2Choose a mode if available.
3Run the tool, then copy or download the result.

Reference

CORS Config Generator — Browser Developer Tool Reference
Input	Output
origin=https://app.example.com	Access-Control-Allow-Origin: ...

Sources & standards

MDN Web Docs: Client-side web APIs - MDN Web Docs
MDN Web Docs: Cross-Origin Resource Sharing (CORS) - MDN Web Docs

FAQ

Is CORS Config Generator input sent to a server?

No. This tool processes input in your browser and does not send or store it on a server.

Can I use the output directly in production?

Review the output against your actual runtime, DNS, security policy, and service documentation before production deployment.