PrivateCaptcha
Network SecurityA privacy‑first, self‑hostable Proof‑of‑Work CAPTCHA service designed to replace Google reCAPTCHA and similar services while staying GDPR‑compliant.
Features
- Adaptive challenge difficulty with configurable options
- Low‑resource, optimized backend for efficient operation
- Lightweight, customizable widget (including an invisible mode)
- Backend usage statistics without tracking personal data
Recent releases
View all 5 releases →
v1.31.0
Security relevant
Notable features
- Difficulty rules system
Full changelog
- New feature: Difficulty rules system (docs)
- Various security bugfixes
v1.29.0
Mixed
Notable features
- Self-hosted license now available for community edition
- Configurable concurrency tuning for maintenance jobs
- Timeouts added to widget puzzle fetching operations
Full changelog
- introduce self-hosted license for community edition
- add ability to tune maintenance job concurrency
- add timeouts to widget fetching puzzle operations
- improve backfill logic of invalid sitekeys
- take maintenance mode into account for
/readyendpoints - add masked IP address to audit logs
- fix HTTP handler path in Prometheus metrics
v1.28.0
Mixed
Notable features
- API key rotation
- Java and Ruby integrations
- Property and organization transfers
Full changelog
NOTE: Versioning now follows semver logic so this release v1.28.0 follows v0.0.27 practically speaking
- Audit logs
- Java and Ruby integrations
- Split account statistics per organization
- API key rotation
- Ability to invite to org a non-user by email
- Move property / Transfer org functionality
- Improve code coverage to 80%
- Load testing and performance improvements for /puzzle and /verify endpoints
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About
Stars
173
Forks
5
Languages
Go
HTML
JavaScript
Downloads/week
166
↓30%
NPM Maintainers
1
Contributors
8
Install & Platforms
Install via
docker
Similar tools
Alternative to
Google reCAPTCHA
hCaptcha
CloudFlare Turnstile