Cost / License
- Free
- Open Source
Platforms
- Windows
- Online
- Google Chrome
- Firefox



Apps similar to Live HTTP Headers include Fiddler, which has a free version. Other options are HTTP Toolkit, Proxyman, OpenHeader and Requestly. You can choose from more than 10 HTTP(S) Debuggers like Live HTTP Headers for Windows, Linux, Mac, the web and Android.



Analytics Inspector provide an easy way to validate web analytics and marketing integration and offers a great way to quickly validate the instrumentation via unique and simplified user interface.



Open-source Chrome extension to add & modify HTTP request headers and share configs in one click. A lightweight ModHeader alternative — no ads, no tracking.



ModHeader is a powerful browser extension that provides users with complete control over HTTP(S) headers. By allowing you to modify, add, or remove headers in a simple and user-friendly interface.


Omnibug is a plugin for the Google Chrome and Mozilla Firefox browsers to ease developing and debugging web metrics implementations. Each outgoing request (sent by the browser) is checked for a pattern; if a match occurs, the URL is displayed and decoded to show the details of...



Easy, intuitive yet powerful HTTP(S) debugging proxy for macOS, Windows and Linux — capture, inspect, mock, break and replay traffic.



