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Life & fun · July 14, 2020

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FriendlyCaptcha – a privacy friendly proof-of-work based CAPTCHA

Friendly Captcha is a privacy-compliant, accessible alternative to traditional CAPTCHAs. It protects your websites and apps from bots and spam.

FriendlyCaptcha – a privacy friendly proof-of-work based CAPTCHA launched on July 14, 2020 with 9 votes, #1,109 of 4,305 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 6 years on.

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What it does

Protect your websites and apps from spam and abuse with a privacy-compliant and accessible alternative to traditional CAPTCHAs. Friendly Captcha respects your user’s privacy and works automatically, so your users don’t have to do anything. Based on proof-of-work mechanisms and advanced risk signals, Friendly Captcha employs a fundamentally new approach to securely defend your websites and online services from bots and spam. Friendly Captcha doesn’t track your users. It is compliant with GDPR, CCPA, and global privacy regulations. Plus, your users no longer have to deal with tedious labeling tasks. They don’t have to do anything at all. Friendly Captcha is the first…from friendlycaptcha.com

Does a similar job

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  • Cap2025 · capjs.js.org · ▲428

    A lightweight, modern open-source captcha

  • ZENCAPTCHA2023 · zencaptcha.com · ▲115

    Privacy-first bot & spam defense, GDPR compliant CAPTCHA

  • WeHateCaptchas2019 · ▲208

    Keep the bots out without annoying your users

  • Replace CAPTCHAs with WebAuthn passkeys for bot prevention2024 · github.com · ▲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

  • CodeCaptcha - Hide web links behind coding challenges2022 · codecaptcha.io · ▲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.

  • WW
    wehatecaptchas – we’ll keep the bots out without annoying your users2019 · wehatecaptchas.com · ▲136

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