Alternatives

Products that do what EphCaptcha does

A CAPTCHA experience users won’t hate

1. 1
   reCAPTCHA v3▲222

   The next generation reCAPTCHA

   2018

2. 2
   WeHateCaptchas▲208

   Keep the bots out without annoying your users

   2019

3. 3
   No CAPTCHA reCAPTCHA▲181

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

   2014

4. 4
   ZENCAPTCHA▲115

   Privacy-first bot & spam defense, GDPR compliant CAPTCHA

   2023

5. 5RC
   Replace CAPTCHA with Proof-of-Work▲89

   2014 · hashcash.io

6. 6CH
   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

7. 7
   Are You a Human?▲67

   Ending the CAPTCHA agony in a unique way.

   2013

8. 8
   Humans Not Invited▲237

   CAPTCHA that filters out humans and only lets programs pass

   2018

9. 9PO
   Procaptcha – Open-source, privacy preserving and frictionless CAPTCHA▲8

   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

10. 10
    adCAPTCHA▲148

    Secure your site, elevate your brand, boost ad revenue

    2024

11. 11
    Squat Captcha▲231

    The worst captcha ever! Forces you to do 10 squats

    2020

12. 12
    Graboxy maze CAPTCHA▲122

    Brandable captcha that is fun & easy to solve

    2021

13. 13
    SmartChat Assistant▲116

    Create AI powered bots, embed with ease

    2024

14. 14
    UseChat▲128

    ChatGPT on your website for your users

    2023

15. 15FA
    FriendlyCaptcha – a privacy friendly proof-of-work based CAPTCHA▲9

    2020 · friendlycaptcha.com

16. 16TC
    The Captcha Experiment▲15

    2011 · thecaptchaexperiment.com

17. 17
    MonoChat▲21

    Create your website's AI ChatBot in 1 minute

    Nov 2025

18. 18TT
    Tricking the user to access history using CSS and captchas▲140

    2014 · frantzmiccoli.github.io

19. 19TT
    Talk to AI Models in Terminal▲9

    Hi everyone, nice to meet you and I am a newcomer of HN. I have made a binary tool Aih that could communicate with Bard, ChatGPT, Claude, and Llama(HuggingChat) from the terminal. https://github.com/Databingo/aih Since CAPTCHA challenges and bots detecting have become increasingly difficult, I've changed my strategy from hacking the APIs to simulating a real browser's action. The tool first takes the logged-in cookies of Google, ChatGPT, Claude, and HuggingChat accounts from the real Chrome browser, then it opens an invisible instance of Chromium for communication, then…

    2023 · github.com

20. 20
    Wonderchat▲115

    Build custom AI chatbots from your website link in 5 minutes

    2023

21. 21WW
    wehatecaptchas – we’ll keep the bots out without annoying your users▲136

    2019 · wehatecaptchas.com

22. 22
    Suportal for Devs▲99

    Custom ChatGPT for your website - using your own API Key

    2023

23. 23
    Chat Interface for OpenAI Assistants▲119

    ChatGPT-like customer interactions in a website widget

    2024

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

    2013 · boundit.co

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