best-of ranking · updated nightly

Best Open Source Security & Privacy Tools

Ranked by GitHub stars — actual adoption, not editorial taste. All 10 are free, open source and self-hostable; license and last activity on every entry.

1. 1
   Puter ★ 44K

   A full desktop environment that runs in your browser

   AGPL-3.0 TypeScript pushed 2026-09-17 details →
2. 2
   Mattermost ★ 39K

   Secure collaboration platform for mission-critical work

   NOASSERTION TypeScript pushed 2026-09-17 details →
3. 3
   Keycloak ★ 37K

   Secure authentication and access control made simple

   Apache-2.0 Java pushed 2026-09-17 details →
4. 4
   Tailscale ★ 37K

   Zero-config VPN with WireGuard for secure networking

   BSD-3-Clause Go pushed 2026-09-17 details →
5. 5
   HashiCorp Vault ★ 36K

   Secure storage and access control for secrets and sensitive data

   NOASSERTION Go pushed 2026-09-17 details →
6. 6
   JumpServer ★ 32K

   Secure access management for modern IT infrastructure

   GPL-3.0 Python pushed 2026-09-17 details →
7. 7
   ProjectDiscovery ★ 31K

   Advanced vulnerability detection and management platform

   MIT Go pushed 2026-09-15 details →
8. 8
   Better Auth ★ 30K

   Framework-agnostic authentication for TypeScript applications

   MIT TypeScript pushed 2026-09-17 details →
9. 9
   Signal ★ 29K

   Private messaging with end-to-end encryption

   AGPL-3.0 Kotlin pushed 2026-09-17 details →
10. 10
    Netbird ★ 29K

    Zero Trust networking with WireGuard-based secure connectivity

    NOASSERTION Go pushed 2026-09-17 details →

last updated nightly · ranking method: github stars, live-tracked

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