HeaderKit guides

Request-header testing guides for Chrome

Modify headers, switch profiles, and set automatic expiry.

01 / First rule

Modify request headers for an HTTPS API in Chrome

Create exact-host rules. Scope API paths or fetch/XHR requests. Verify in DevTools.

02 / Environments

Switch staging and QA request headers with profiles

Separate staging and QA headers. Switch profiles without retyping values.

03 / Automatic expiry

Automatically turn off temporary test headers in Chrome

Set one-hour, eight-hour, or browser-session expiry. Keep rules saved for later tests.

Ready for the next API test.

Free. Local settings. Chrome 120 or later.

Add to Chrome