Web-based reCAPTCHA Alternatives

There are many alternatives to reCAPTCHA as a web app if you are looking for a replacement. The best Online alternative is hCaptcha, which is free. If that doesn't suit you, our users have ranked more than 25 alternatives to reCAPTCHA and many of them are available as a web app so hopefully you can find a suitable replacement. Other interesting Online alternatives to reCAPTCHA are Procaptcha, Cloudflare Turnstile, Friendly Captcha and mosparo.

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Alternatives list

  1. hCaptcha icon
     12 likes

    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.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
     
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    2
  2. Procaptcha icon
     15 likes

    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

    Application type

    Platforms

    • Online
    • Software as a Service (SaaS)
    • Wordpress
     
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    1
  3. Turnstile is Cloudflare's smart CAPTCHA alternative. It automatically chooses from a rotating suite of non-intrusive browser challenges based on telemetry and client behavior exhibited during a session.

    20 Cloudflare Turnstile alternatives

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
    • JavaScript
    • Software as a Service (SaaS)
     
    |
    1
  4. Friendly Captcha is a leading cybersecurity company with a clear mission: to reliably defend against modern bot attacks and spam while complying with the GDPR and other privacy regulations. As Germany's largest CAPTCHA provider, Friendly Captcha uses innovative technology to...

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
    • Software as a Service (SaaS)
     
    |
    5
  5. mosparo icon
     5 likes

    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 (MIT)

    Application type

    Platforms

    • Online
    • Self-Hosted
    • Python
    • JavaScript
    • Drupal
    • Django
    • PHP
    • Mautic
    • Wordpress
     
  6. Private Captcha icon
     16 likes

    Private Captcha is an independent, privacy-first, self-hostable Proof-of-Work CAPTCHA service made in EU. Instead of asking users to solve complex puzzles or track their behavior, Private Captcha solves an invisible cryptographic task in the background.

    Cost / License

    • Free Personal
    • Proprietary

    Application type

    Platforms

    • Online
    • Self-Hosted
    • Docker
     
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    3
  7. mCaptcha icon
     4 likes

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

    Cost / License

    Application type

    Platforms

    • Online
    • Self-Hosted
    • Software as a Service (SaaS)
     
    |
    1
  8. TrustCaptcha icon
     2 likes

    TrustCaptcha is a privacy-first, invisible CAPTCHA that protects your website from bots and spam—without disrupting your users.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
    • Spring
    • Kotlin
    • Rust
    • Ruby
    • Python
    • .NET Framework
    • Craft CMS
    • React
    • Groovy
    • JavaScript
    • Angular
    • Software as a Service (SaaS)
    • Scala
    • PHP
    • Go (Programming Language)
    • Typescript
    • Java
    • Wordpress
    • Node.JS
    • Vue.js
     
  9. Analytics, Captcha, Feedback widget in one script.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
    • Software as a Service (SaaS)
     
  10. IronWall icon
     1 like

    IronWall is a Proof-of-Work (PoW) rate-limiting protocol designed to protect high-value API endpoints (AI generation, Auth, SMS triggers) from automated abuse.

    Cost / License

    • Freemium
    • Open Source (MIT)

    Application type

    Platforms

    • Online
    • Software as a Service (SaaS)
     
  11. InputGuard icon
     1 like

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

    Cost / License

    • Freemium
    • Proprietary

    Platforms

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

    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
    • Proprietary

    Platforms

    • Online
     
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