First Byte is a Chrome extension designed to display the initial byte of the HTTP response from the active URL. It provides users with quick access to view the first byte of the HTTP response, offering valuable insights into the data exchange process. With a simple click, users can open a popup that conveniently showcases the first byte of the response, aiding in troubleshooting and analyzing network interactions effectively.

This free Chrome extension by Class V LLC falls under the Browsers category, specifically in the Add-ons & Tools subcategory. Its functionality focuses on delivering a straightforward solution for users seeking to inspect the initial byte of HTTP responses, enhancing their understanding of network communication.