HTTP Header Spy Alternatives

HTTP-Repeater (HTTP/s Live Headers) (Beta) is a browser extension that lets you capture browser requests and repeat the process in a loop automatically.

Sky Live HTTP Headers is an open-source browser extension that visually displays HTTP requests and response headers from every website you visit.

Effortlessly create stunning PDFs and screenshots. Seamlessly store them in your own AWS or Google Cloud Storage bucket, putting the control and creativity right at your fingertips.

Visit website freemium €4.99 / Monthly

Modify Header Value (HTTP Headers) is a browser extension that allows you to add, modify or remove a header for any request to your preferred domains.

WebSniffer is an online tool to outlook HTTP request and response headers.

HTTP Header Analyzer is an open-source browser extension that allows you to see and analyze the current HTTP request and response header from the website URL.

HTTP Header Checker Tools

Open Source free

Smart Header is a browser extension that lets you manipulate the HTTP request headers and response header automatically.

HTTP-TRACKER is an advanced browser extension that allows you to examine HTTP request headers, cookies, response Headers, website data, cookies and modify request headers before sending them.

The goal of this project is to adds information about the HTTP headers in three ways:

View HTTP header response for any web page.

Displays the HTTP header. Edit it and send it.

Examine, edit, and debug HTML, CSS, and JavaScript on the desktop and on mobile.

Fiddler is a debugging program for websites.