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Sozu

Hot-reconfigurable HTTP reverse proxy in Rust

Reverse Proxy & Gateways ★ 3.7k stars Hard setup AGPL-3.0

Sozu is an open-source HTTP reverse proxy written in Rust that can be reconfigured at runtime without dropping connections. It is built for safety and zero-downtime configuration changes.

Official siteSource code

Key features

  • Hot configuration reload
  • Memory-safe Rust core
  • Zero-downtime changes
  • Runtime control API

Strengths

  • Released under the AGPL-3.0 license
  • First-class Docker support for quick deployment
  • Active community (3.7k GitHub stars)
  • Written in Rust

Is Sozu secure?

OSV.dev has no published security advisories for Sozu's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

Sozu replaces

Self-hosted HAProxy alternativesSelf-hosted Nginx alternatives

Health badge

Maintain Sozu? Add its health score to your README. The badge links back to this page.

SelfHostIndex: 88 · excellent

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.. image:: https://selfhostindex.com/badge/sozu.svg
   :alt: SelfHostIndex health score for Sozu
   :target: https://selfhostindex.com/app/sozu/

The score is recomputed on every nightly rebuild from public repository data — see how it is calculated.

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