ModHeader is a devtool used to quickly change request and response headers. It is available on Chrome, Firefox, Edge, and Opera on Windows, MacOS, and Linux. ModHeader is consistently ated 4+ stars on Chrome web store and used by 550,000+ users.

Check out our 5 minutes get started with ModHeader tutorials

The best way to reach us is to send us a message via our contact form, or send us an email at [email protected].

We will try to get back to you within 48 hours if you contact us via the contact form or through the email above. However, we receive quite a bit of spams, so some emails may get sent to our spam inbox, or we may ignore spammy inquiries. If you have not received a response from us within 48 hours, please reach out again.
Copy link
On this page
How to use ModHeader
Sample profiles to help you get started
How do I contact the support team?
When will I get a response?