Philosophy
Most CAPTCHA systems today are built around surveillance: tracking users, fingerprinting browsers, and collecting data in exchange for access. Cap rejects that model.
Cap is designed around a few core ideas:
- Privacy by default: no trackers, no third-party requests, no hidden profiling.
- Simplicity over complexity: no image labeling, no click-the-fire-hydrant puzzles.
- Speed matters: fast to render, fast to solve, fast to validate.
- User-first: designed to be unintrusive and accessible, with invisible and floating modes.
- Self-hostable, not centralized: you control the infra, tokens, and behavior.
By using proof-of-work instead of user behavior analysis, Cap shifts the burden from identity to computation. That means anyone can prove they're human without cookies, accounts, or friction.
Cap is what a CAPTCHA should've been all along: simple, honest, and yours.