CHROME EXTENSIONRequest headers,
exactly your way.
Add custom HTTP request headers to any site.
ModHeader-style — but lightweight.
Manifest V3 · Works on Chrome 88 and later.
Your headers ride along with every outgoing request.
It all happens on your device. The browser’s built-in declarativeNetRequest engine does the work.
A profile for every job.
Group your header sets into multiple profiles. Only the selected profile is active — or pin one with “Always on (📌)” to apply it everywhere, no matter what’s selected.
Only where you want it.
Scope rules with a URL filter. Substring matching just works, and wildcards like `https://*.example.com/*` or leading-anchor `|` follow the declarativeNetRequest syntax exactly.
Flip a single header on or off.
Every header has its own toggle. Compare on vs. off right where you are, without deleting the value you’re testing.
Common headers, one click away.
Insert presets like Authorization, User-Agent, Referer, and Cache-Control with a single click — no retyping header names every time.
And a little more.
Export / Import
Save and load your settings as JSON
Auto-save & apply
Instant updates, active count on the badge
52 languages
Follows your browser’s display language
Manifest V3
Built on declarativeNetRequest dynamic rules
Header editing, made effortless.
Install it, click the toolbar icon, and you’re ready to go.
Need a hand?
Questions, feature requests, bug reports — feel free to reach out.
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