Best Self-Hosted Security & Privacy Tools in 2026

Tools for protecting privacy, securing networks, and managing vulnerabilities and security threats.

The top-rated pick is Vaultwarden with 60,173 GitHub stars.

6 self-hosted security & privacy tools — ranked by GitHub stars. Browse all

Vaultwarden

Unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs.

Alternative to:

1Password

Pi-hole

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

Alternative to:

Pi-hole

AdGuard Home

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

Alternative to:

Pi-hole

Passbolt

Passbolt Community Edition (CE) API. The JSON API for the open source password manager for teams!

Alternative to:

1Password

AliasVault

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

Alternative to:

1Password

Midas

Open platform for governing execution authority at decision surfaces across agents, AI systems, and enterprise workflows.

Alternative to:

FICO Blaze Advisor

Why self-host?

Self-hosting puts you in control. You own your data, avoid vendor lock-in, and eliminate recurring subscription costs. For teams handling sensitive data or operating under strict compliance requirements, running your own infrastructure is often the only viable option.

Want to compare all open source options including cloud-hosted ones? See the best open source security & privacy tools →