reCAPTCHA AlternativesTop Anti-Spam Tools and other similar apps like reCAPTCHA

reCAPTCHA is described as 'Free service that protects your site from spam and abuse, using risk analysis techniques to tell humans and bots apart' and is a very popular Anti-Spam tool in the security & privacy category. There are more than 25 alternatives to reCAPTCHA, not only websites but also apps for a variety of platforms, including SaaS, Self-Hosted, JavaScript and PHP apps. The best reCAPTCHA alternative is Cap Captcha, which is both free and Open Source. Other great sites and apps similar to reCAPTCHA are hCaptcha, Anubis (anti-bot), Cloudflare Turnstile and ALTCHA.

reCAPTCHA iconreCAPTCHA
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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...

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reCAPTCHA alternatives page was last updated May 11, 2025
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  1. Cap Captcha icon

    Cap Captcha

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

    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 reCAPTCHA

     

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

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

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

    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 reCAPTCHA

     
    Comments about hCaptcha as an Alternative to reCAPTCHA
    Peter Jepef
    Negative Sep 6, 2024
    3

    hCaptcha say they have privacy based policies but its basically a "trust me bro" situation. Not GDPR friendly.

    Nicolas
    Positive Dec 7, 2023
    -3

    I like hCaptcha for his privacy respectful policies.

    reCAPTCHA Icon
    hCaptcha icon

    • Most users think hCaptcha is a great reCAPTCHA alternative.

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

    • hCaptcha is Freemium and ProprietaryreCAPTCHA is also Freemium and Proprietary
    • hCaptcha is Privacy focusedreCAPTCHA is not according to our users
  4. Anubis (anti-bot) icon

    Anubis (anti-bot)

     6 likes
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    Anubis weighs the soul of your connection using a sha256 proof-of-work challenge in order to protect upstream resources from scraper bots.

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • CA flagCanada

    Platforms

    • Self-Hosted
    • Go (Programming Language)
    • Docker
    Anubis (anti-bot) screenshot 1

    Properties

    1.  Lightweight
    2.  Security-focused

    Features

    1.  Ad-free
    2.  Golang
    3.  Bot detection
    4.  SHA256
    5.  Multi-threaded architecture
    6.  Support for Multiple threads

    Anubis (anti-bot) VS reCAPTCHA

     
  5. Cloudflare Turnstile icon

    Cloudflare Turnstile

     3 likes
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    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.

    15 Cloudflare Turnstile alternatives

    License model

    • Free • Proprietary

    Country of Origin

    • US flagUnited States

    Platforms

    • Online
    • JavaScript
    • Software as a Service (SaaS)

    Cloudflare Turnstile Features

    1.  Web-Based
    2.  Fraud detection
    3.  Bot detection

    Cloudflare Turnstile VS reCAPTCHA

     

    • Cloudflare Turnstile is the most popular SaaS alternative to reCAPTCHA.

    • Cloudflare Turnstile is Free and ProprietaryreCAPTCHA is Freemium and Proprietary
  6. ALTCHA icon

    ALTCHA

     5 likes
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    ALTCHA uses a proof-of-work mechanism to protect your website, APIs, and online services from spam and unwanted content. Unlike other CAPTCHA solutions, ALTCHA is free, open-source and self-hosted, does not use cookies nor fingerprinting, does not track users, and is fully...

    16 ALTCHA alternatives

    License model

    • Free • Open Source

    Application type

    Platforms

    • Self-Hosted
    • Software as a Service (SaaS)
    Simple automatic user verification

    Properties

    1.  Privacy focused

    Features

    1.  Spam Filter
    2.  GDPR Compliant
    3.  Captcha
    4.  Integrated Spam Protection

    ALTCHA VS reCAPTCHA

     
  7. Friendly Captcha icon

    Friendly Captcha

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

    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 reCAPTCHA

     
    Comments about Friendly Captcha as an Alternative to reCAPTCHA
    Most Recent Comment
    Guest
    Positive Feb 17, 2021
    4

    The most secure and privacy-aware solution on the market

    Peter Jepef
    Negative Sep 6, 2024
    1

    It doesn't actually stop bots

    Guest
    Positive Nov 14, 2024
    -1

    seamless UX without clicking on busses, WCAG compliant, maximum accessibility, privacy compliant, no HTTP cookies, no persistent browser storage, no fingerprinting

    Show more comments
    3 of 4 comments
    reCAPTCHA Icon
    Friendly Captcha icon

    • Some users think Friendly Captcha is a great reCAPTCHA alternative, some don't.

    • Friendly Captcha is Freemium and ProprietaryreCAPTCHA is also Freemium and Proprietary
    • Friendly Captcha is Privacy focusedreCAPTCHA is not according to our users
  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.

    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 reCAPTCHA

     
  10. Procaptcha icon

    Procaptcha

     11 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.

    License model

    • Freemium • Open Source

    Application types

    Country of Origin

    • GB flagUnited Kingdom

    Platforms

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

    Properties

    1.  Privacy focused

    Features

    1.  Captcha
    2.  Bot detection
    3.  Ad-free
    4.  Spam Filter
    5.  Integrated Spam Protection
    6.  No Tracking
    7.  Dark Mode
    8.  GDPR Compliant
    9.  European data privacy
    10.  Mobile friendly

    Procaptcha VS reCAPTCHA

     
    Comments about Procaptcha as an Alternative to reCAPTCHA
    Peter Jepef
    Positive Sep 6, 2024
    1

    It works better, it costs less, it doesn't track your users, it has invisible challenges for humans stops bots. Need I say more?

    reCAPTCHA Icon
    Procaptcha icon

    • Almost everyone thinks Procaptcha is a great reCAPTCHA alternative.

    • Procaptcha is Freemium and Open SourcereCAPTCHA is Freemium and Proprietary
    • Procaptcha is Privacy focusedreCAPTCHA is not according to our users
  11. mCaptcha icon

    mCaptcha

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

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • IN flagIndia

    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 reCAPTCHA

     
    Comments about mCaptcha as an Alternative to reCAPTCHA
    Biep
    Positive Mar 10, 2025
    0

    It is Free and Open Source. Inspectable.

    reCAPTCHA Icon
    mCaptcha icon
    • mCaptcha is Free and Open SourcereCAPTCHA is Freemium and Proprietary
    • mCaptcha is Privacy focusedreCAPTCHA is not according to our users
  12. GeeTest CAPTCHA icon

    GeeTest CAPTCHA

     1 like
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    GeeTest protects your websites, mobile apps and APIs from bad bot attacks with zero user friction. Its self-learning defense model based on Graph Convolutional Networks and massive volumes of biometric data collected in the past 7 years allows GeeTest to identify and mitigate...

    License model

    Application type

    Country of Origin

    • CN flagChina

    Platforms

    • Software as a Service (SaaS)
    GeeTest protects your websites and mobile apps from bad bot attacks with zero user friction.

    GeeTest CAPTCHA Features

    1.  Captcha Recognition
    2.  Bot detection

    GeeTest CAPTCHA VS reCAPTCHA

     

    • GeeTest CAPTCHA is the most popular commercial alternative to reCAPTCHA.

    • GeeTest CAPTCHA is Paid and ProprietaryreCAPTCHA is Freemium and Proprietary
  13. Arkose Labs icon

    Arkose Labs

     Like
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    The Arkose Labs platform undermines the economic drivers behind fraud until perpetrators are compelled to abandon attacks. Real-time risk classification of traffic with interactive enforcement challenges, the solution defeats automated attacks...

    License model

    Country of Origin

    • US flagUnited States

    Platforms

    • Software as a Service (SaaS)
    Arkose Labs screenshot 1

    Arkose Labs Features

    1.  Fraud detection
    2.  Captcha

    Arkose Labs VS reCAPTCHA

     
  14. Trustcaptcha icon

    Trustcaptcha

     2 likes
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    Trustcaptcha is your user-friendly CAPTCHA solution for preventing spam and bot attacks on your website with a focus on GDPR compliance and UX.

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    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
    Contact form sample
    Demo field

    Properties

    1.  Privacy focused
    2.  Customizable

    Features

    1.  Ad-free
    2.  Captcha
    3.  Web-Based
    4.  Mobile friendly
    5.  European data privacy
    6.  GDPR Compliant
    7.  Bot detection
    8. WordPress icon  WordPress Integration

    Trustcaptcha VS reCAPTCHA

     
12 of 26 reCAPTCHA alternatives