hCaptcha
Earn money with a captcha
hCaptcha launched on March 27, 2020 with 7 votes, #1,280 of 4,454 launches that month and more than 50% of that year's launches.
What it does
Did you realize every time you "click on the car" you are helping to train a single Giganticcompany's machine learning systems for free? hCaptcha turns this model around. When you use hCaptcha, companies bid on the work your users do as they prove their humanity. You get the rewards.
Does a similar job
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- CHCodeCaptcha - 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.
AI Agent Platform by CometChatOct 2025 · cometchat.com · ▲261AI Copilot for your website/app. Free for first 500 teams.
- RCReplace 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
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