InputGuard Alternatives

InputGuard is described as 'The privacy friendly alternative to reCAPTCHA or other captcha tools' and is an app in the security & privacy category. There are more than 10 alternatives to InputGuard for a variety of platforms, including Web-based, Self-Hosted, SaaS, PHP and Docker apps. The best InputGuard alternative is Cap Captcha, which is both free and Open Source. Other great apps like InputGuard are reCAPTCHA, hCaptcha, mosparo and mCaptcha.

InputGuard iconInputGuard
  1
  • Freemium • Proprietary
  • ...

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

More about InputGuard
More about InputGuard
InputGuard alternatives page was last updated Apr 19, 2025
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Alternatives
  1. Cap Captcha icon

    Cap Captcha

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

    27 Cap Captcha alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • PT flagPortugal
    • European Union flagEU

    Platforms

    • Self-Hosted
    • Docker
    Cap Captcha screenshot 1

    Properties

    1.  Lightweight
    2.  Privacy focused
    3.  Customizable

    Features

    1.  No Tracking
    2.  Spam Filter
    3.  Dark Mode
    4.  Ad-free
    5.  Captcha

    Cap Captcha VS InputGuard

     

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

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

    • Cap Captcha is Free and Open SourceInputGuard is Freemium and Proprietary
    • Cap Captcha is Lightweight and Privacy focusedInputGuard is not according to our users
  2. 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.

    26 reCAPTCHA alternatives

    License model

    • Freemium • Proprietary

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Online
    reCAPTCHA screenshot 1

    reCAPTCHA Features

    1.  Spam Filter
    2.  Captcha Recognition

    reCAPTCHA VS InputGuard

     

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

    • reCAPTCHA is Freemium and ProprietaryInputGuard is also Freemium and Proprietary
  4. 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.

    27 hCaptcha alternatives

    License model

    • Freemium • Proprietary

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Online
    hCaptcha screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  Captcha
    2.  Bot detection
    3.  Web-Based
    4.  GDPR Compliant

    hCaptcha VS InputGuard

     
  5. 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.

    22 mosparo alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • CH flagSwitzerland

    Platforms

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

    Properties

    1.  Privacy focused

    Features

    1.  Spam Filter
    2.  Self-hosted
    3. WordPress icon  WordPress Integration
    4. Drupal icon  Drupal Integration

    mosparo VS InputGuard

     
  6. mCaptcha icon

    mCaptcha

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

    27 mCaptcha alternatives

    License model

    • Free • Open Source

    Application type

    Platforms

    • Online
    • Self-Hosted
    • Software as a Service (SaaS)
    mCaptcha screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  Ad-free
    2.  Captcha
    3.  Rust

    mCaptcha VS InputGuard

     

    • mCaptcha is the most popular SaaS alternative to InputGuard.

    • mCaptcha is Free and Open SourceInputGuard is Freemium and Proprietary
    • mCaptcha is Privacy focusedInputGuard is not according to our users
  7. Friendly Captcha icon

    Friendly Captcha

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

    21 Friendly Captcha alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Online
    • Software as a Service (SaaS)
    Friendly Captcha screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  GDPR Compliant
    2.  Bot detection
    3.  Mobile friendly
    4.  Captcha
    5. WordPress icon  WordPress Integration
    6.  No Tracking
    7.  European data privacy
    8.  Web-Based
    9.  Ad-free
    10.  Spam Filter
    11.  Dark Mode

    Friendly Captcha VS InputGuard

     
  9. Procaptcha icon

    Procaptcha

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

    20 Procaptcha alternatives

    License model

    • Freemium • Open Source

    Application types

    Platforms

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

    Properties

    1.  Privacy focused

    Features

    1.  Bot detection
    2.  Captcha
    3.  Spam Filter
    4.  Ad-free
    5.  Integrated Spam Protection

    Procaptcha VS InputGuard

     
  10. 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...

    20 MTcaptcha alternatives

    License model

    • Freemium • Proprietary

    Platforms

    • Software as a Service (SaaS)
    MTCAptcha Standard

    MTcaptcha Features

    1.  GDPR Compliant
    2.  Captcha

    MTcaptcha VS InputGuard

     
  11. Captcha icon

    Captcha

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    Protect your business from bots and spam while ensuring 100% data privacy compliance. No puzzles, no tracking – just invisible security that works.

    21 Captcha alternatives

    License model

    Country of Origin

    • AT flagAustria
    • European Union flagEU

    Platforms

    • Software as a Service (SaaS)
    • Online

    Captcha Features

    1.  Captcha

    Captcha VS InputGuard

     

    • Captcha is the most popular commercial alternative to InputGuard.

    • Captcha is Paid and ProprietaryInputGuard is Freemium and Proprietary

  12. EU Captcha

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    Multilingual captcha developed by and for EU countries.

    21 EU Captcha alternatives

    License model

    • Free • Open Source

    Platforms

    • Self-Hosted

    EU Captcha Features

    1.  Spam Filter
    2.  European data privacy
    3.  Captcha

    EU Captcha VS InputGuard

     
  13. Captcheck icon

    Captcheck

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    Open source reCAPTCHA alternative.

    17 Captcheck alternatives

    License model

    • Free • Open Source

    Platforms

    • Online
    • Self-Hosted
    Image mode

    Captcheck Features

    1.  Captcha Recognition

    Captcheck VS InputGuard

     
11 of 11 InputGuard alternatives