# ModHeader browser extension

<h2 align="center">
  <img style="vertical-align: middle" src="https://mod-header.appspot.com/android-icon-96x96.png" width="64px" alt="ModHeader" />
  <strong>ModHeader</strong>
</h2>
<h3 align="center">
  ModHeader is a browser extension that allow you to modify HTTP request and response headers.
</h3>
<h3 align="center">
  <a href="https://mod-header.appspot.com/">
    Official Website
  </a>
</h3>
<p align="center">
  <a href="https://chrome.google.com/webstore/detail/modheader/idgpnmonknjnojddfkpgkljpfnnfcklj">
    <img style="vertical-align: middle" src="https://mod-header.appspot.com/images/chrome_1x.png" srcset="https://mod-header.appspot.com/images/chrome_2x.png 2x">
  </a>
  <a href="https://addons.mozilla.org/firefox/addon/modheader-firefox/">
    <img style="vertical-align: middle" src="https://mod-header.appspot.com/images/firefox_1x.png" srcset="https://mod-header.appspot.com/images/firefox_2x.png 2x 2x">
  </a>
</p>

## Features

* Add/modify/remove request headers and response headers
* Enable header modification based on URL/resource type
* Add comments to header
* Multiple different profiles
* Sorting headers by name, value, or comments
* Append value to existing request or response header
* Export and import header
* Clone profile
* Cloud backup
* Tab locking!

## Screenshots

<img src="https://mod-header.appspot.com/images/ss1.png">
<img src="https://mod-header.appspot.com/images/ss2.png">
<img src="https://mod-header.appspot.com/images/ss3.png">

## Installation

ModHeader does not require any extra tool for building. Simply load the src directory into Chrome / Firefox to start local development.