Alternatives

Products that do what The Captcha Experiment does

1. 1
   Are You a Human?▲67

   Ending the CAPTCHA agony in a unique way.

   2013

2. 2RC
   Replace CAPTCHA with Proof-of-Work▲89

   2014 · hashcash.io

3. 3AE
   An experimental, people-powered search engine▲215

   2021 · ninfex.com

4. 4FA
   FriendlyCaptcha – a privacy friendly proof-of-work based CAPTCHA▲9

   2020 · friendlycaptcha.com

5. 5EC
   Experimental chat written in Common Lisp▲114

   2017 · github.com

6. 6MA
   MapChat – A simple location based chat in 300 lines of code▲205

   2015 · idoco.github.io

7. 7AC
   AI Captcha Solver for Chrome▲8

   2023 · github.com

8. 8CT
   Captcha to detect bots with a simple question▲5

   Apr 2026 · joshryandavis.github.io

9. 9AT
   A tool to make a bot that speaks like you, learning from WhatsApp chats▲134

   2018 · github.com

10. 10TT
    Tricking the user to access history using CSS and captchas▲140

    2014 · frantzmiccoli.github.io

11. 11BE
    BotEngine – Easy tool for creating chatbots▲124

    2017 · botengine.ai

12. 12PA
    Pyre – A command-line interface for Tinder▲107

    2015 · github.com

13. 13SE
    Social experiment with live textboxes▲29

    2017 · lines.editfight.com

14. 14AE
    An experimental Web Browser▲59

    2015 · github.com

15. 15TT
    Tenyks – The service-oriented IRC bot I've been working on▲57

    2014 · github.com

16. 16NA
    Nod – Anonymous proximity messenger▲53

    2015 · yougotthenod.com

17. 17LA
    LockedAway – A unique text experience▲65

    2016 · lockedaway.online

18. 18BC
    BoundIt CAPTCHA: highlight objects in photos to prove you're human▲24

    2013 · boundit.co

19. 19AS
    A successful penny-auction bot▲74

    2010 · github.com

20. 20TU
    TrueCaptcha -Using Deep learning to solve text captchas▲6

    2019 · apitruecaptcha.org

21. 21CE
    Cyph – Encrypted chat in 30 seconds▲39

    2014 · cyph.com

22. 22SA
    Spammed – A social experiment▲6

    2019 · spammed.ao.gl

23. 23IS
    It's not Jackie Chan – A facial recognition web game▲22

    2017 · carntech.com

24. 24AP
    AI powered meme search, open-source▲45

    2021 · examples.jina.ai

Ranked by how close each launch is in meaning, then by votes. Refine with a description →