Software Alternatives, Accelerators & Startups

DOOM Captcha

Captchas don't have to be boring.

Some of the top features or benefits of DOOM Captcha are: Engagement, Security, and Nostalgia. You can visit the info page to learn more.

DOOM Captcha

DOOM Captcha Alternatives & Competitors

The best DOOM Captcha alternatives based on verified products, community votes, reviews and other factors.
Latest update:

  1. 12

    The worst captcha ever! Forces you to do 10 squats.

    Key Squat Captcha features:

    User Engagement Accessibility Security

    /squat-captcha-alternatives
  2. A captcha form for metal fans.

    Key Metal Captcha features:

    User-Friendly Novelty Factor Security

    /metal-captcha-alternatives
  3. Verify your customers in under 15 seconds anywhere in the world with a cutting-edge SaaS & API platform for Identity Verification and AML/KYC compliance.

    Key ComplyCube features:

    AML & Sanctions Screening PEP Checks Negative Media Screening Watchlist Screening

    Try for free freemium $0.1 (per credit)

    Try for free
  4. Replace fire hydrants and traffic lights with your brand.

    /graboxy-maze-captcha-alternatives
  5. GeeTest protects your websites, mobile Apps and APIs from bot threats.

    Key GeeTest CAPTCHA features:

    User-friendly design High security Mobile compatibility Customizable

    freemium

    /geetest-captcha-alternatives
  6. Create parodies of the iconic O'Reilly book covers.

    Key O RLY Cover Generator features:

    Creative Expression User-Friendly Interface Customization Options No Cost

    /o-rly-cover-generator-alternatives
  7. Don't share your email on public sites.

    Key scr.im features:

    Email Privacy Simplicity Free Service

    /scr-im-alternatives
  8. CAPTCHA that filters out humans and only lets programs pass.

    Key Humans Not Invited features:

    Unique Concept Creative Engagement Technological Exploration

    /humans-not-invited-alternatives
  9. This Tiny Script helps to validate your HTML forms using validation rules, sophisticated regular expressions and form input attributes.

    /octavalidate-alternatives
  10. reCAPTCHA is a free security service that protects your websites from spam and abuse.

    Key reCAPTCHA features:

    Security Ease of Implementation User Experience Constant Improvement

    /recaptcha-alternatives
  11. Google Search, also referred to as Google Web Search or simply Google, is a web search engine developed by Google. It is the most used search engine on the World Wide Web.

    Key Google features:

    Search Efficiency User-Friendly Interface Integration with Other Services Speed

    /google-alternatives
  12. Privacy-First Bot & Spam Defense | GDPR Compliant CAPTCHA.

    /zencaptcha-alternatives
  13. Create in-app experiences with the most straightforward product adoption platform — quick implementation, lasting user engagement.

    Key UserGuiding features:

    User Onboarding Guides Hotspots Onboarding Checklists Knowledge Base

    Try for free paid Free Trial $69.0 / Monthly (Basic; Guides & Checklists, Knowledge Base, In-app Surveys)

    /userguiding-alternatives
  14. Fun game about pop ups & the deviousness of websites & apps.

    /terms-and-conditions-apply-alternatives
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