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Negative Captcha Alternatives

Negative Captcha is described as 'A negative captcha has the exact same purpose as your run-of-the-mill image captcha: To keep bots from submitting forms. Image ("positive") captchas do this by implementing a step which only humans can do, but bots cannot: read jumbled characters from an image' and is an app. There are more than 10 alternatives to Negative Captcha for a variety of platforms, including Online / Web-based, Self-Hosted solutions, SaaS, PHP and JavaScript. The best alternative is reCAPTCHA, which is free. Other great apps like Negative Captcha are hCaptcha, Solve Media's CAPTCHA TYPE-IN™, UniqPin and Mollom.

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  • FreeOpen Source
  • Self-Hosted

A negative captcha has the exact same purpose as your run-of-the-mill image captcha: To keep bots from submitting forms....

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  1. reCAPTCHA icon

    reCAPTCHA

    • FreemiumProprietary
    • Online
    16 alternatives to reCAPTCHA 

    reCAPTCHA is a CAPTCHA system that enables web hosts to distinguish between human and automated access to websites. The latest version aims to have as little user interaction as possible, using machine learning to analyse a user's actions and determine if they are a bot, and...

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  2. hCaptcha icon

    hCaptcha

    • FreemiumProprietary
    • Online
    16 alternatives to hCaptcha 

    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.

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  3. Solve Media's CAPTCHA TYPE-IN™ icon

    Solve Media's CAPTCHA TYPE-IN™

    • Online
    12 alternatives to Solve Media's CAPTCHA TYPE-IN™ 

    Solve Media's CAPTCHA TYPE-IN ads are an easy plug-in solution that saves your users time while making your site more secure and more profitable. Instead of struggling with difficult puzzles, users enter a simple brand message or security phrase.

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  4. UniqPin icon

    UniqPin

    • Free PersonalProprietary
    • Self-Hosted
    • JavaScript
    • PHP
    12 alternatives to UniqPin 

    UniqPin is a free for non-commercial use service which destiny improve ability of interfaces detect a human or a computer operate with it.

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  5. Mollom icon

    Mollom

    • FreemiumProprietary
    • Online
    18 alternatives to Mollom 

    Mollom is a freemium web service to get rid of spam, unwanted content and fake users on your Drupal, Wordpress and Joomla site or blog.

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    Discontinued

    "The Mollom content moderation service is no longer available … as of 2 April 2018."



  6. Sblam! icon

    Sblam!

    • FreeProprietary
    • Linux
    • Online
    18 alternatives to Sblam! 

    Open-source implementation of server-side spam filtering of blog comments and forum posts.

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    This app doesn't have any features at the moment.
  7. GeeTest CAPTCHA icon

    GeeTest CAPTCHA

    • Software as a Service (SaaS)
    14 alternatives to GeeTest CAPTCHA 

    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...

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    GeeTest protects your websites and mobile apps from bad bot attacks with zero user friction.
  8. Confident Captcha icon

    Confident Captcha

    • FreemiumProprietary
    • Online
    14 alternatives to Confident Captcha 

    Confident Technologies provides free CAPTCHA security software called Confident CAPTCHA, a picture CAPTCHA that stops spam and bots. Download our free CAPTCHA security software today.

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    1.  Two-factor AuthenticationConfident Captcha supports two-factor authentication (2FA).
    Discontinued

    Domain no longer exist

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  9. phpformmailer

    • FreeProprietary
    • Self-Hosted
    • PHP
    7 alternatives to phpformmailer 

    Easy to use - Nothing stupid your visitors have to type before the form submits.

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    This app doesn't have any features at the moment.
  10. Arkose Labs icon

    Arkose Labs

    • Software as a Service (SaaS)
    13 alternatives to Arkose Labs 

    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...

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