modreq

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modreq

Modify HTTP headers and cookies in Chrome.

Replace or append request headers. Override cookies. A free ModHeader alternative for developers and QA.

Add to Chrome See screenshots

Pick a modification type in modreq

Replace or append HTTP request headers
Override cookies on the current site
Toggle each rule on or off instantly
Rules stay local — no account, no tracking

Screenshots

Headers, cookies, Replace and Append — the full popup flow.

Pick a modification type in modreq

Header editor with Replace and Append modes

Active request header rule

Active cookie override rule

Header and cookie rules together