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Alternatives

Products that do what Vyce Captcha does

Easy and invisible bot protection!

  1. 1

    Privacy-first bot & spam defense, GDPR compliant CAPTCHA

    2023

  2. 2

    Keep the bots out without annoying your users

    2019

  3. 3
    Cap431

    A lightweight, modern open-source captcha

    2025

  4. 4

    Brandable captcha that is fun & easy to solve

    2021

  5. 5

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

    2014

  6. 6RC

    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

  7. 7

    CAPTCHA that filters out humans and only lets programs pass

    2018

  8. 8
    Lapis79

    Secure, offline AI chat assistant on your device

    Nov 2025

  9. 9

    The Telegram bot to search photographs from social media.

    2018

  10. 10
    BOTCHA3

    Traditional CAPTCHAs keep bots out.This one keeps humans out

    Feb 2026 · botcha-verify.vercel.app

  11. 11

    Ending the CAPTCHA agony in a unique way.

    2013

  12. 12TC

    2011 · thecaptchaexperiment.com

  13. 13CT

    Apr 2026 · joshryandavis.github.io

  14. 14RC

    2014 · hashcash.io

  15. 15
    Tinfoil99

    AI chat and API that keeps your conversations fully private

    Apr 2026 · chat.tinfoil.sh

  16. 16

    Hi HN :) really excited to share this with you. The one thing AI reliably does is generate noise. Half the tools I see launch are just machines for producing more noise across more channels. And people are starting to see this in the form of emails in their inboxes as spam filters are struggling. There used to be a useful signal in email: the effort a sender put into customizing a message was a rough proxy for how relevant it actually was. AI killed that. Now it's customized slop with the appearance of effort with none of the cost. It is painful that the open internet / open channels…

    Jul 2026 · captchainbox.com

  17. 17

    A CAPTCHA game themed on pareidolia 🤖

    2021

  18. 18LV

    Hi HN, Bhavani here (rtrvr.ai). We build DOM-native web agents (no screenshot-based vision, no CDP/Playwright debugger-port control). We handle captchas natively including Google reCAPTCHA image challenges by traversing cross-origin iframes and shadow DOM. The latency is high on this one currently. The problem: when debugging image selection captchas ("select all images with traffic lights"), logs don't tell you why the agent clicked the wrong tiles. I found myself staring at execution logs thinking "did it even see the grid correctly?" and realized I just wanted to watch it work. So we…

    Jan 2026 · rtrvr.ai

  19. 19BP

    I've been researching the bot & proxies space for years. I slowly incubated a service to protect public forms, contents and APIs. It recenty reached a few million daily requests and I now dare to bring it to light. Truesign detects bots, proxies/vpns and fake emails, through a single request from the browser, without challenges or user interaction. It can block the request based on rules you choose, or grant a token with encrypted information about the visitor for you to decide. I created a few pages to showcase how it works: - https:/demo.truesign.ai/protected-form : a form…

    Oct 2025 · truesign.ai

  20. 20

    Donut bot for Discord

    2022

  21. 21FA
  22. 22CC
  23. 23RC
  24. 24

    Hide secret messages in plain text using invisible Unicode.

    Oct 2025

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