
Private Captcha
reCAPTCHA
hCaptcha
Cloudflare Turnstile
Cap Captcha
ALTCHA
mosparo
GeeTest CAPTCHA
HTTP Response API
Beeceptor
Profanity Buster
Private Captcha offers a user-friendly CAPTCHA solution that protects forms and APIs while maintaining high privacy standards without requiring extra integration efforts. Instead of asking users to solve complex puzzles or track their behavior, Private Captcha solves an invisible cryptographic task in the background. The system automatically adjusts the task difficulty, ensuring smooth access for real users while making it too costly for bots to attempt. Cryptographic task provides equal security regardless of bot's intelligence level, making it effective even as AI technology improves.
Private Captcha
HTTP Response APIreCAPTCHA - reCAPTCHA is a free security service that protects your websites from spam and abuse.
Beeceptor - Unblock yourself from API dependencies, and build & integrate with APIs fast. Beeceptor helps you build a mock Rest API in a few seconds.
hCaptcha - 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.
Profanity Buster - The API that helps you filter bad words from any text
Cloudflare Turnstile - Cloudflare's service for any company to replace CAPTCHAs and deliver a better experience to web visitors.
Cap Captcha - Lightweight, modern open-source CAPTCHA alternative designed using SHA-256 proof-of-work.