Crow Tech

Free utility

CORS Header Model

Model selected request and response-header CORS decisions locally.

All free utilities

Processing stays on this device. Your input is not uploaded, sent to an external service, or saved by Crow Tech.

Workbench

Inputs stay on this page. Use the explicit action to validate and produce a result.

Models selected supplied response fields locally. Method/header wildcards apply only without credentials, and Authorization must be listed explicitly. It is not a request, browser/server test, vulnerability finding, or security verdict.