Cap Captcha Alternatives

Cap Captcha is described as 'Lightweight, modern open-source CAPTCHA alternative designed using SHA-256 proof-of-work' and is a Anti-Spam tool in the security & privacy category. There are more than 25 alternatives to Cap Captcha for a variety of platforms, including Web-based, SaaS, Self-Hosted, Wordpress and JavaScript apps. The best Cap Captcha alternative is Anubis. It's not free, so if you're looking for a free alternative, you could try Anubis or reCAPTCHA. Other great apps like Cap Captcha are Private Captcha, hCaptcha, Cloudflare Turnstile and IronWall.

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Alternatives list

  1. Captcha icon

    Captcha

     Like

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

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Software as a Service (SaaS)
    • Online
     
  2. reCaptcha WordPress Plugin icon

    reCaptcha WordPress Plugin

     Like

    reCaptcha plugin is an effective security solution that protects your WordPress website forms from spam entries while letting real people pass through with ease. It can be used for login, registration, password recovery, comments, popular contact forms, and others.

    8 reCaptcha WordPress Plugin alternatives

    Cost / License

    Application type

    Platforms

    • Wordpress
    reCaptcha WordPress Plugin screenshot 1
     

  4. phpformmailer

     Like

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

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Self-Hosted
    • PHP
     
  5. Captcheck icon

    Captcheck

     Like

    Open source reCAPTCHA alternative.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Online
    • Self-Hosted
    Image mode
     
  6. Confident Captcha icon

    Confident Captcha

     2 likes

    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.

    Cost / License

    • Freemium
    • Proprietary

    Alerts

    • Discontinued

    Platforms

    • Online
    Confident Captcha screenshot 1
     
  7. Synthient icon

    Synthient

     Like

    Synthient offers cutting edge bot and fraud protection while also giving you deep insights into your visitors. Track repeat visitors, device details, and the potential risk to your platform.

    11 Synthient alternatives

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Online
    Synthient screenshot 1
     
  9. CaptchaText icon

    CaptchaText

     Like

    A zero database architecture, powered by a proprietary hybrid in-memory indexing engine algorithm, that enables CAPTCHA authentication to be performed using minimal data bits against server memory.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
    • Software as a Service (SaaS)
    CaptchaText screenshot 1
     
  10. AuthKong icon

    AuthKong

     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
    AuthKong screenshot 1
     
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