Header Grep is a free Chrome extension developed by byrdal76. It falls under the category of Browsers and is specifically classified as an Add-ons & Tools subcategory. This extension provides a convenient way to grep header names and values of all requests, allowing users to easily filter and search for specific headers and values.

With Header Grep, users can access a new tab in the Chrome developer tools, which provides a dedicated space for monitoring and searching for headers and values. This extension supports both request and response headers, making it versatile for various monitoring and analysis tasks.

One of the standout features of Header Grep is its support for regular expressions. This allows users to perform advanced searches using powerful pattern matching techniques. By leveraging regular expressions, users can refine their searches and find exactly what they're looking for.

Overall, Header Grep is a valuable tool for developers and users who need to analyze and monitor headers in Chrome. Its intuitive interface and powerful search capabilities make it a must-have extension for anyone working with web requests and responses.