h2o ☆
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Description:
HTTP server with support for HTTP/1.x and HTTP/2
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Networking
Tags: http-server http2 web-server reverse-proxy performance
Install: brew install h2o
About:
H2O is a high-performance, optimized HTTP server designed for speed and efficiency. It natively supports modern protocols including HTTP/1.x, HTTP/2, and TLS. Its event-driven architecture makes it ideal for serving static content and acting as a reverse proxy.
Key Features:
  • Native HTTP/2 and TLS support
  • Event-driven, high-performance architecture
  • Built-in reverse proxy capabilities
  • Flexible configuration via YAML
Use Cases:
  • High-performance static file serving
  • Reverse proxying for application servers
  • Terminating TLS/SSL connections efficiently
Alternatives:
  • nginx – Nginx is more mature with a vast ecosystem, while H2O focuses on raw performance and modern protocol support out of the box.
  • caddy – Caddy prioritizes ease of use with automatic HTTPS, whereas H2O emphasizes raw throughput and HTTP/2 optimization.
Version History
Detected Version Rev Change Commit
Sep 12, 2025 11:18am 3 VERSION_BUMP 9ac45576
Sep 13, 2024 4:11pm 3 VERSION_BUMP 6c66a64c
Sep 24, 2023 3:50am 3 VERSION_BUMP d6ce2bbe
Nov 22, 2022 12:52am 2 VERSION_BUMP b0328c9f
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