Best Cap Captcha Alternatives & Competitors in 2025

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

Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled.

Key hCaptcha features:

Privacy Security Monetization Customization

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)

the modern spam protection.

Key mosparo features:

Accessible Data-saving Free-to-use Self-hosted

Open Source

ALTCHA is a free CAPTCHA alternative that uses a proof-of-work mechanism to protect your website, and online services from spam.

Key ALTCHA features:

Privacy-friendly, GDPR compliant Frustration-free Spam Filtering Open-source

Open Source free

Cloudflare's service for any company to replace CAPTCHAs and deliver a better experience to web visitors. .

Key Cloudflare Turnstile features:

Accessibility Privacy-Focused Improved User Experience Security

UniqPin is a free for non-commercial use service which destiny improve ability of interfaces detect...

Key UniqPin features:

Unique Identification Enhanced Security User-friendly Interface Scalability

Solve Media's cost per engagement platform offers advertisers branded CAPTCHA and skippable Pre-Roll while providing publishers with enhanced security and a new revenue solution.

Key Solve Media features:

Enhanced Security Advertising Revenue User Engagement Mobile Compatibility

Mollom is a freemium web service to get rid of spam, unwanted content and fake users on your...

Key Mollom features:

Effective Spam Filtering User-Friendly Content Analysis