Invisible · Checkbox
Cloudflare Turnstile
Cloudflare · USA (Delaware) · since 2022-10
Free, unlimited, privacy-first CAPTCHA backed by Cloudflare's threat data. No visual puzzles for most users, just an invisible challenge that runs in the background. Used on millions of sites and the easiest reCAPTCHA migration path.
AuditedFree
Free quota
1M solves/month free, unlimited above
Pricing
Free forever (no paid tier)
// pros
- + Zero cost at any scale
- + Privacy-first, no cookies required
- + Strong telemetry from Cloudflare's network
// cons
- − Requires Cloudflare account
- − Closed-source, not self-hostable
- − Less effective for niche language sites with low traffic baseline
// highlights
- ▸Always free
- ▸No data sale
- ▸GDPR/CCPA friendly
- ▸Drop-in reCAPTCHA replacement
- ▸Managed and non-interactive modes
// specs
- Pricing
- free
- Open source
- No
- Self-host
- No
- Audited
- Yes
- HQ
- USA (Delaware)
- Since
- 2022-10
- License
- Proprietary
- Frameworks
- 7 supported