Open Source Security & Privacy Tools Projects
Tools for protecting privacy, securing networks, and managing vulnerabilities and security threats.
View best security & privacy tools ranked by popularity
AdGuard Home
Network-wide DNS-based ad and tracker blocker with parental controls, DNS rewrites, and detailed query logging.
Headscale
An open source, self-hosted implementation of the Tailscale control server
ExpressVPN
Pi-hole
Network-wide DNS-based ad blocking that protects all devices on your network, including Smart TVs and IoT devices.
Vaultwarden
Lightweight, self-hosted Bitwarden-compatible server written in Rust — runs on minimal hardware with full client support.
Bitwarden
Ente
🔒 End-to-end encrypted cloud for photos, videos and 2FA secrets.
Google Authenticator
Pangolin
Pangolin is an open-source, self-hosted identity-aware tunneled reverse proxy server featuring a sleek dashboard UI, designed to securely expose private resources across distributed networks without the need for opening inbound ports or dealing with complex firewall rules. It builds encrypted tunnels—often leveraging a user-space WireGuard client called Newt—to connect isolated services, supports HTTP/HTTPS as well as raw TCP/UDP traffic, automates SSL via Let’s Encrypt, enables load balancing, and integrates identity and access management with SSO, role-based access control, 2FA, temporary share links, OAuth2/OIDC integration, and more.
Cloudflare
OpenVPN
OpenVPN is an open source VPN daemon
ExpressVPN
Proxly
A self-hosted tunneling tool — like ngrok, but on your own domain. Expose local dev servers through subdomains on your VPS.
ngrok