FlashFuzz is a browser extension designed for Chrome that offers rapid URL fuzzing and secret scanning capabilities. It caters to security engineers and developers, enabling them to conduct immediate reconnaissance directly within the browser. Users can quickly identify hidden endpoints across all open tabs and scan JavaScript files for potential secrets such as API keys and tokens. The extension supports custom wordlists and allows for concurrent requests with adjustable batch sizes.

This lightweight tool features a user-friendly interface, providing detailed results along with request and response snapshots. FlashFuzz is open source and free to use, making it an accessible option for those in need of efficient security testing tools. Users can also export their findings for further analysis or reporting, enhancing the overall utility of this extension.