Captcheck Alternatives

Captcheck is described as 'Open source reCAPTCHA alternative' and is an app. There are more than 10 alternatives to Captcheck for a variety of platforms, including Web-based, SaaS, Self-Hosted, Docker and Wordpress apps. The best Captcheck alternative is Cap Captcha, which is both free and Open Source. Other great apps like Captcheck are Anubis, reCAPTCHA, Procaptcha and hCaptcha.

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Captcheck alternatives page was last updated

Alternatives list

  1. Cap Captcha icon

    Cap Captcha

     25 likes
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    Lightweight, modern open-source CAPTCHA alternative designed using SHA-256 proof-of-work.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Self-Hosted
    • Docker
    Cap Captcha screenshot 1
     

    • Cap Captcha is the most popular Self-Hosted alternative to Captcheck.

    • Cap Captcha is the most popular Open Source & free alternative to Captcheck.

    • Cap Captcha is Free and Open SourceCaptcheck is also Free and Open Source
    • Cap Captcha is Customizable, Lightweight and Privacy focusedCaptcheck is not according to our users
  2. Anubis icon

    Anubis

     15 likes
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    Applies sha256 proof-of-work challenges to incoming HTTP requests, targeting AI crawlers, bots that ignore robots.txt, and automated scrapers, protecting server resources and preventing unwanted search engine indexing for privacy-focused sites.

    47 Anubis alternatives

    Cost / License

    • Free Personal
    • Open Source

    Application type

    Platforms

    • Self-Hosted
    • Go (Programming Language)
    • Docker
    Anubis screenshot 1
     
  4. reCAPTCHA icon

    reCAPTCHA

     127 likes
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    reCAPTCHA is a free service that protects your site from spam and abuse, using risk analysis techniques to tell humans and bots apart.

    28 reCAPTCHA alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application type

    Platforms

    • Online
    reCAPTCHA screenshot 1
     

    • reCAPTCHA is the most popular Web-based alternative to Captcheck.

    • reCAPTCHA is Freemium and ProprietaryCaptcheck is Free and Open Source
  5. Procaptcha icon

    Procaptcha

     14 likes
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    Prosopo Procaptcha redefines user verification with a unique approach that emphasizes privacy and security. It's a pioneering solution designed to offer an alternative to conventional CAPTCHA systems that often compromise user privacy.

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application type

    Platforms

    • Online
    • Software as a Service (SaaS)
    • Wordpress
    Procaptcha screenshot 1
     

    • Procaptcha is the most popular SaaS alternative to Captcheck.

    • Procaptcha is Freemium and Open SourceCaptcheck is Free and Open Source
    • Procaptcha is Privacy focusedCaptcheck is not according to our users
  6. hCaptcha icon

    hCaptcha

     12 likes
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    hCaptcha is designed to solve the most labor intensive problem in machine learning: labeling massive amounts of data in a timely, affordable, and reliable way.

    30 hCaptcha alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application type

    Platforms

    • Online
    hCaptcha screenshot 1
     
  7. mCaptcha icon

    mCaptcha

     4 likes
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    A no-nonsense CAPTCHA system with seamless UX | Backend component.

    30 mCaptcha alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
    • Self-Hosted
    • Software as a Service (SaaS)
    mCaptcha screenshot 1
     
  9. mosparo icon

    mosparo

     4 likes
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    mosparo is the modern solution for protecting your online forms from spam. The protection method is quite simple: mosparo blocks spam using rules matching the form’s data. The detection method is comparable to an e-mail spam filter.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
    • Self-Hosted
    • Python
    • JavaScript
    • Drupal
    • Django
    • PHP
    • Mautic
    • Wordpress
    A screenshot from the software mosparo with the empty project list.
     
  10. Friendly Captcha icon

    Friendly Captcha

     10 likes
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    Friendly Captcha is a tool for preventing spam on your website.

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application type

    Platforms

    • Online
    • Software as a Service (SaaS)
    Friendly Captcha screenshot 1
     
  11. InputGuard icon

    InputGuard

     1 like
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    InputGuard is the privacy friendly alternative to reCAPTCHA or other captcha tools.

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Platforms

    • Online
    • Self-Hosted
    • Software as a Service (SaaS)
     
  12. MTcaptcha icon

    MTcaptcha

     3 likes
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    MTCaptcha is a smart captcha service that prioritizes privacy and accessibility. It offers an adaptive invisible noCaptcha that is easy for humans but hard for bots, making verification frictionless. MTCaptcha is GDPR and WCAG compliant, ensuring that your data is never sold or...

    Cost / License

    • Freemium (Pay once or Subscription)
    • Proprietary

    Platforms

    • Software as a Service (SaaS)
    MTCAptcha Standard
     
  13. IconCaptcha icon

    IconCaptcha

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    conCaptcha is a self-hosted captcha which is faster, more user-friendly and more customizable than other captchas - available for PHP and ASP.NET websites. Users no longer have to read any annoying text images, solve difficult math equations or play any puzzle games.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Self-Hosted
    IconCaptcha screenshot 1
     
  14. 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
     
12 of 18 Captcheck alternatives