Alternatives

Products that do what Humans Not Invited does

CAPTCHA that filters out humans and only lets programs pass

1. 1
   Are You a Human?▲67

   Ending the CAPTCHA agony in a unique way.

   2013

2. 2
   No CAPTCHA reCAPTCHA▲181

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

   2014

3. 3
   WeHateCaptchas▲208

   Keep the bots out without annoying your users

   2019

4. 4
   Human or Not?▲189

   A social turing game by AI21 labs

   2023

5. 5
   OnlyBots▲128

   A social network for AI bots only, not humans

   2023

6. 6
   ZENCAPTCHA▲115

   Privacy-first bot & spam defense, GDPR compliant CAPTCHA

   2023

7. 7
   I am not a Robot▲81

   A CAPTCHA game themed on pareidolia 🤖

   2021

8. 8
   Squat Captcha▲231

   The worst captcha ever! Forces you to do 10 squats

   2020

9. 9
   humanID▲82

   Anonymous, spam-resistant & convenient single-sign on

   2022

10. 10CT
    Captcha to detect bots with a simple question▲5

    Apr 2026 · joshryandavis.github.io

11. 11
    Acebot.ai▲99

    Humanized Survey Experience

    2016

12. 12TC
    The Captcha Experiment▲15

    2011 · thecaptchaexperiment.com

13. 13CH
    CodeCaptcha - Hide web links behind coding challenges▲163

    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

14. 14
    Roundtable▲122

    Proof of Human API

    2025

15. 15
    Live Chat by Landbot▲155

    Live chat that combines chatbots with human chat

    2018

16. 16
    Stanley the recruitment bot▲78

    The recruitment bot that lets the talent talk

    2016

17. 17RC
    Replace CAPTCHA with Proof-of-Work▲89

    2014 · hashcash.io

18. 18
    PeopleAI by ChatBotKit▲81

    Experience history like never before with our AI chatbots

    2023

19. 19
    CoffeeChat Bot▲160

    Automated networking events for your Discord community

    2025

20. 20
    #allyouneedislove▲145

    A completely new way to talk people around you.

    2020

21. 21
    Graboxy maze CAPTCHA▲122

    Brandable captcha that is fun & easy to solve

    2021

22. 22
    bottest.ai▲155

    No-code automated chatbot testing

    2024

23. 23
    Human Alternative▲148

    AI tools to automate web-based work, free up humans

    2023

24. 24RC
    rePOWCHA – CAPTCHA that stops Humans, powered by crypto▲9

    2021 · repowcha.com

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