Build Access-Control-* response headers from a form.
Tip: use samples, upload, copy, download, and send-to actions inside the workspace where available.
CORS Header Generator is a free, browser-based tool that helps you produce ready-to-use output in seconds. Build Access-Control-* response headers from a form. It's built for speed and privacy: Everything runs locally in your browser — your data is never uploaded to a server. No sign-up, no installs, and no daily limits.
Generate a sample or helper artifact, then copy it into the workflow that needs it.
Review the preview, copy or download the result, and keep everything local in your browser.
HTTP Status Lookup: Reference for all HTTP status codes with descriptions.
Open toolUser-Agent Parser: Parse a User-Agent string into browser, OS, and device.
Open toolAccess-Control-Allow-Origin: https://example.com Access-Control-Allow-Methods: GET, POST, OPTIONS Access-Control-Allow-Headers: Content-Type, Authorization Access-Control-Max-Age: 86400
