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Buster: Captcha Solver for Humans

Chrome Web Store Firefox add-ons Microsoft Store Opera add-ons

Supporting the Project

The continued development of Buster is made possible thanks to the support of awesome backers. If you'd like to join them, please consider contributing with Patreon, PayPal or Bitcoin.


Buster is a browser extension which helps you to solve difficult captchas by completing reCAPTCHA audio challenges using speech recognition. Challenges are solved by clicking on the extension button at the bottom of the reCAPTCHA widget.

Obviously, this blue part here is the land.

— Byron "Buster" Bluth, reading a map


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.

The difficulty of captchas can be so out of balance, that sometimes they seem friendlier to bots than they are to humans.

The goal of this project is to improve our experience on the web, by giving us easy access to solutions utilized by automated systems.

Client App

The client app enables you to simulate user interactions and improves the success rate of the extension. Follow the instructions from the extension's options to download and install the client app on Windows, Linux and macOS, or get the app from this repository.



Copyright (c) 2018-2023 Armin Sebastian

This software is released under the terms of the GNU General Public License v3.0. See the LICENSE file for further information.