Captcha proves you're human. HATCHA proves you're not
HATCHA is a tool that identifies non-human users, presenting itself as the opposite of a CAPTCHA: instead of proving you're human, it proves you're not. It is hosted on GitHub under the mondaycom organization.
Background
- HATCHA is a privacy-focused alternative to traditional CAPTCHAs (like "I'm not a robot" checkboxes or image challenges). Instead of proving you're human, HATCHA proves you're *not a bot* — using lightweight, browser-based tests that never transmit personal data or behavioral tracking to third parties.<br>- Created by monday.com, the Israeli project-management software company (NASDAQ: MNDY). It's an open-source, MIT-licensed tool meant to share this approach with the wider dev community.<br>- The key innovation: traditional CAPTCHAs often rely on Google's reCAPTCHA, which tracks user behavior for fraud detection — raising privacy concerns. HATCHA runs everything locally in the browser and uses subtle performance/rendering tests that automated scripts can't easily mimic.<br>- This matters because CAPTCHAs are one of the most common vectors for data leakage and user frustration on the web, and a growing number of developers and regulators are pushing for privacy-respecting alternatives.