unCAPTCHA Alternatives

unCAPTCHA is described as 'CAPTCHAs are the Internet's first line of defense against automated account creation and service abuse. Google's reCaptcha, one of the most popular captcha systems, is currently used by hundreds of thousands of websites to protect against automated attackers by testing' and is an app. There are five alternatives to unCAPTCHA for a variety of platforms, including Google Chrome, Mozilla Firefox, Opera, Linux and Web-based apps. The best unCAPTCHA alternative is Buster, which is both free and Open Source. Other great apps like unCAPTCHA are hektCaptcha, NopeCHA, AuthKong and CAPTCHA22.

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unCAPTCHA alternatives page was last updated

Alternatives list

  1. Buster icon

    Buster

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    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.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Microsoft Edge
    • Google Chrome
    • Opera
    • Firefox
    Buster screenshot 1
     

    • Buster is the most popular Open Source & free alternative to unCAPTCHA.

    • Buster is Free and Open SourceunCAPTCHA is also Free and Open Source
  2. hektCaptcha icon

    hektCaptcha

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    Automatically solve hCaptcha using AI. Locally, with Chrome extension.

    Cost / License

    • Free
    • Open Source

    Alerts

    • Discontinued

    Platforms

    • Google Chrome
    hektCaptcha screenshot 1
     
  4. NopeCHA icon

    NopeCHA

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    It's a free-to-use automated CAPTCHA solver, compatible with multiple CAPTCHA types, and powered by advanced deep learning models.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Google Chrome
    • Mozilla Firefox
    NopeCHA screenshot 1
     
  5. AuthKong icon

    AuthKong

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    AuthKong is a smart captcha service designed to protect websites from spam and abuse while ensuring real users can pass through effortlessly. It offers a more user-friendly and effective alternative to traditional captcha systems like reCAPTCHA, featuring easy-to-use slider and...

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Platforms

    • Online
    AuthKong screenshot 1
     

    • AuthKong is the most popular Web-based alternative to unCAPTCHA.

    • AuthKong is Freemium and ProprietaryunCAPTCHA is Free and Open Source
  6. CAPTCHA22 icon

    CAPTCHA22

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    CAPTCHA22 is a toolset for building, and training, CAPTCHA cracking models using neural networks. These models can then be used to crack CAPTCHAs with a high degree of accuracy. When used in conjunction with other scripts, CAPTCHA22 gives rise to attack automation; subverting...

    Cost / License

    • Free
    • Open Source

    Platforms

    • Linux
     

    • CAPTCHA22 is the most popular Linux alternative to unCAPTCHA.

    • CAPTCHA22 is Free and Open SourceunCAPTCHA is also Free and Open Source
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