wCaptcha

What it does

A work-based CAPTCHA. If a robot or crawl wants to hit the API endpoint or crawl the site, it must give a large number of CPU times, this make them hardly to get the job done

• 
  reCAPTCHA v32018 · developers.google.com · ▲222

  The next generation reCAPTCHA

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  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.

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  WeHateCaptchas2019 · ▲208

  Keep the bots out without annoying your users

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  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

• RC
  Replace CAPTCHA with Proof-of-Work2014 · hashcash.io · ▲89
• FA
  FriendlyCaptcha – a privacy friendly proof-of-work based CAPTCHA2020 · friendlycaptcha.com · ▲9

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

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  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

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• PS
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