Buster: Captcha Solver for Humans icon

Buster: Captcha Solver for Humans

by Armin Sebastian · armin.dev · Tools
FeaturedEstablished publisherManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Save time by asking Buster to solve CAPTCHAs for you.

Users
800K
0 in 30 days
Rating
3.7 / 5
−0.14 in 30 days
Ratings
924
+1 in 30 days
Store rank
#492
#458 among extensions
Version
3.4.0
updated 20 Jun 2026

Users

monthly, 3 years
100K450K800KAug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 800,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
200562924Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 924 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Buster: Captcha Solver for Humans

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. It is not guaranteed that challenges are always solved, the limitations of the technology need to be considered. Buster is an open source project made possible thanks to a community of awesome supporters. If you'd like to support the continued development of the extension, please check out https://armin.dev/go/patreon. Client app The success rate of the extension can be improved by simulating user interactions with the help of a client app. Follow the instructions from the extension's options to download and install the client app on Windows, Linux and macOS. Solving more than a couple of reCAPTCHA challenges a day may lead to a temporary block, regardless of your use of the extension. Visit the wiki for more details. https://github.com/dessant/buster/wiki/Inaccessible-reCAPTCHA-audio-challenge Motivation 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 CAPTCHA challenges 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 user experience on the web, by giving us easy access to solutions utilized by automated systems. The extension is also available for Edge and Firefox: https://github.com/dessant/buster#readme The developer does not collect any personal data from this extension, visit the extension's privacy policy for more information. Reviews are not monitored for bug reports, please use GitHub for issues and feature requests. https://github.com/dessant/buster

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%−1−0.14
30 days0+0.0%+1−0.14
6 months+100K+14.3%+39−0.14
1 year+100K+14.3%+67−0.17

Chrome Web Store search rankings

Where Buster: Captcha Solver for Humans appears when people search the store, with the 30 day change
Search phrasePosition30 days
captcha#10
user experience#87new

Version history

18 versions recorded
3.4.020 Jun 2026
3.3.017 Jun 2026
3.2.116 Jun 2026
3.1.44 Jun 2026
3.1.327 Apr 2026
3.1.219 Apr 2026
3.1.13 Apr 2026
3.1.05 Jun 2024

Details

Category
Tools
First seen
15 Jun 2020
Size
6.6 MB
Languages
en
Pricing
Free
Privacy policy
github.com
Support
github.com
Extension ID
mpbjkejclgfgadiemmefgebjfooflfhl

Permissions and risk

Minimal riskimpact 3, likelihood 0
Permissions
storagenotificationswebRequestdeclarativeNetRequestwebNavigationnativeMessagingoffscreenscripting
Site access
<all_urls>
Can read and change data on every website you visit.

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