Open Source #security Projects

Network-wide DNS-based ad and tracker blocker with parental controls, DNS rewrites, and detailed query logging.

Open-source identity and access management with SSO, OAuth2, OIDC, and SAML support for modern applications.

Self-hosted reverse proxy that blocks AI scraper bots with a lightweight proof-of-work challenge.

Network-wide DNS-based ad blocking that protects all devices on your network, including Smart TVs and IoT devices.

Self-hosted, GDPR-compliant CAPTCHA alternative that stops spam with privacy-friendly proof-of-work challenges.

KeePassXC is a cross-platform, community-driven port of KeePass Password Safe. Store credentials locally in an encrypted database, with no cloud required and full data control.

Vaultwarden is an unofficial, Bitwarden-compatible server written in Rust. Self-host your password vault with low resource use and full compatibility with all Bitwarden clients.

Self-hosted collaborative password manager for teams. Organize and share credentials with role-based access control.

Free cross-platform password manager compatible with KeePass, available as a desktop and web app.

Open-source authentication platform for Next.js and React, built as an alternative to Auth0 and Clerk.

Privacy-first password manager with built-in email aliasing. Fully encrypted and self-hostable.

Open-source authentication solution, an alternative to Auth0 and Firebase Auth that you can self-host.

OpenVPN is an open source VPN daemon

Battle-tested AI code review agent with deterministic pipelines + LLM, fine-tuned security rules, and line-level comments.