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Alternatives

Products that do what sCaptcha does

A privacy-based captcha you can count on

  1. 1

    Privacy-first bot & spam defense, GDPR compliant CAPTCHA

    2023

  2. 2

    The next generation reCAPTCHA

    2018

  3. 3

    Google's update to CAPTCHA just asks if you're robot

    2014

  4. 4
    Cap431

    A lightweight, modern open-source captcha

    2025

  5. 5

    No code cookie banners, get compliant in 5 minutes

    2023

  6. 6

    Protects your website from spam and abuse

    2017

  7. 7CH

    Hello HN, I made this silly project over the long weekend. It’s pretty basic right now and the captchas are very easy. I plan to add captcha difficulty levels for link creators soon.

    2022 · codecaptcha.io

  8. 8

    Keep the bots out without annoying your users

    2019

  9. 9

    The CAPTCHA your users will actually enjoy.

    May 2026

  10. 10

    CAPTCHA that filters out humans and only lets programs pass

    2018

  11. 11RC

    I built Nocaptcha after getting frustrated with traditional CAPTCHAs both as a user and developer. WebAuthn passkeys offered a promising alternative that's both more secure and user-friendly. What makes Nocaptcha different: - Uses WebAuthn standard instead of puzzle-solving - No need for users to remember passwords or solve puzzles - Open source Current limitation: Working with W3C WebAuthn Community Group on true passkey disposal for this use case. Looking for feedback particularly on: 1. Integration experience 2. User experience compared to traditional CAPTCHAs

    2024 · github.com

  12. 12

    Captchas don't have to be boring

    2021

  13. 13FA
  14. 14
    CapeChat248

    Keep sensitive data private while still using ChatGPT

    2023

  15. 15PO

    We built Procaptcha to make sure there's an actually good alternative to Google's ReCAPTCHA that's not a complete nightmare for the end user. Crucially we're not just a giant ad network like almost all CAPTCHA providers [1]. Like with other CAPTCHA providers it's simple to set up, you just change a couple of tags [2]. We've got a few different CAPTCHA types at the moment, all running on a distributed network of nodes with no user tracking. [1] https://prosopo.io/articles/stop-giving-your-website-data-aw... [2] https://github.com/prosopo/captcha

    2024 · prosopo.io

  16. 16

    Invisible CAPTCHA for privacy-focused teams

    Mar 2026 · trustcomponent.com

  17. 17
    adCAPTCHA148

    Secure your site, elevate your brand, boost ad revenue

    2024

  18. 18
    fullmoon321

    Chat with private and local large language models

    2025

  19. 19
    Keychat108

    Start a free secure chat with anyone without signing up

    2020

  20. 20

    A secure chat button for every profile

    2017

  21. 21

    EU-built CAPTCHA, without the surveillance.

    22d ago · actaprime.eu

  22. 22

    Ending the CAPTCHA agony in a unique way.

    2013

  23. 23

    True anonymity preventing queries from being 'fingerprinted'

    2024

  24. 24

    Chat via nearby persons. Instant, Secure, Anonymously. 🕶

    2017

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