Buster: Captcha Solver for Humans

Buster is a browser extension which helps you to solve difficult captchas by completing reCAPTCHA audio challenges using automatic speech recognition. Challenges are solved by clicking on the extension button at the bottom of the reCAPTCHA widget. reCAPTCHA challenges remain a considerable burden on the web, delaying and often blocking our access to services and information depending on our physical and cognitive abilities, our social and cultural background, and the devices or networks we connect from.

Source: github.com