Alternatives

Products that do what Conversion.Business does

Zero-telemetry, 2-5 second gamified CAPTCHAs for React

1. 1
   DOOM Captcha▲512

   Captchas don't have to be boring

   2021

2. 2ZA
   Zero – A fast, zero-configuration server for React, Node.js, Markdown▲513

   2019 · zeroserver.io

3. 3
   Cap▲431

   A lightweight, modern open-source captcha

   2025

4. 4
   No CAPTCHA reCAPTCHA▲181

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

   2014

5. 5RC
   Replace CAPTCHAs with WebAuthn passkeys for bot prevention▲71

   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

6. 6
   WeHateCaptchas▲208

   Keep the bots out without annoying your users

   2019

7. 7TR
   The Road to learn React – Build a Hacker News App on the Way▲339

   2016 · robinwieruch.de

8. 8
   Are You a Human?▲67

   Ending the CAPTCHA agony in a unique way.

   2013

9. 9
   Squat Captcha▲231

   The worst captcha ever! Forces you to do 10 squats

   2020

10. 10
    Clerk▲280

    Authentication and user management for React and Next.js

    2021

11. 11
    React Insta Stories▲210

    Create Instagram/Snapchat like stories using React on web

    2019

12. 12
    Humans Not Invited▲237

    CAPTCHA that filters out humans and only lets programs pass

    2018

13. 13ZC
    Zero-codegen, no-compile TypeScript type inference from Protobufs▲138

    2025 · github.com

14. 14FJ
    Forgo.js – a 4kb React alternative based on plain JS and DOM APIs▲110

    2021 · forgojs.org

15. 15
    CAPTCHA Royale▲74

    Race to solve CAPTCHAs, last player standing wins

    Apr 2026 · sean-reid.github.io

16. 16NA
    Nerv – A fast React alternative, compatible with IE8 and React 16▲133

    2018 · github.com

17. 17
    ZENCAPTCHA▲115

    Privacy-first bot & spam defense, GDPR compliant CAPTCHA

    2023

18. 18
    ZeroThreat▲98

    World's most intelligent web app & API security scan tool

    2024

19. 19
    Disposable▲126

    A real-time, e2e encrypted ephemeral communication tool

    2023

20. 20BD
    BFS, Dijkstra and A* interactive demo made in React▲94

    2021 · github.com

21. 21RC
    Replace CAPTCHA with Proof-of-Work▲89

    2014 · hashcash.io

22. 22
    Playtcha.com - The fun CAPTCHA▲7

    The CAPTCHA your users will actually enjoy.

    May 2026

23. 23XA
    XHR anti bot bypass (xhr.dev)▲19

    I've launched the new product, xhr.dev (https://xhr.dev/) The initial product is a 1 line code integration that does bot detection avoidance via a forward proxy. Ideal customer is someone who gets blocked by anti-bot defences like cloudflare or other captcha challenges. Usually these customers have web scraping use cases. You can view our historical performance on our status page (https://status.xhr.dev). ty v much, john

    2024 · xhr.dev

24. 24ZD
    Zero – DX focused non framework to interact with the DOM▲33

    2024 · github.com

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