Open source · MIT

Mock headers on the request. Keep the app untouched.

Set, append, or drop request and response headers in Chrome. Profiles, URL filters, and redirects compile to declarativeNetRequest. Nothing is uploaded.

Install from source Source

Request / responseSet, append, remove.
ScopeURL, tab, window, type, or time.
RedirectWildcard or regex.
Stay localchrome.storage only.

Load unpacked

Terminal

bun install && bun run build

chrome://extensions → Developer mode → Load unpacked → output/chrome-mv3.