A fast HTTP / Websocket Server with built-in Pub/Sub support (with or without Redis), static file support and many other features, optimized for Ruby MRI on Linux / BSD / macOS / Windows

Required Ruby Version

>= 2.2.2

Authors

Boaz Segev

Versions

  1. 5.5.0 July 06, 2026 (675 KB)
  2. 5.4.0 June 08, 2026 (675 KB)
  3. 5.3.0 June 03, 2026 (675 KB)
  4. 5.2.1 March 18, 2026 (669 KB)
  5. 5.2.0 March 10, 2026 (669 KB)
  6. 3.3.0 August 18, 2024 (668 KB)
Show all versions (34 total)

Requirements

A Unix based system: Linux / macOS / BSD.

An updated C compiler.

Ruby >= 2.3.8 (Ruby EOL).

Ruby >= 2.5.0 recommended.

TLS requires OpenSSL >= 1.1.0.

Or Windows with Ruby >= 3.0.0 build with MingW and MingW as compiler.

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