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Falcon

Multi-process, multi-fiber Rack-compatible HTTP server for Ruby web applications, with HTTP/2 and TLS.

Falcon is a Rack-compatible HTTP server for Ruby web applications, published as the falcon gem. It runs as a multi-process, multi-fiber server, and its deployment guide states that it can be deployed into production as a standalone application server.

Falcon is built on top of the async gems, separate packages by the same maintainer. It installs with bundle add falcon or gem install falcon.

Worth knowing

The maintainer offers priority business support through socketry.io.

Identity

Status
Active
Maintainer
Samuel Williams4
Maintained by
Individual4
First release
20177

Rendering and deploy

Runs as
Always on6
Install with
rubygems3

Releases

Current major version
Pre-1.08
Last release
2026-08-098

Adoption

GitHub stars
3,0532
Contributors
299

Why these figures do not compare

Sources

  1. 2026-10-29: links, Categories
    socketry.github.io/falcon/
  2. 2026-10-29: links, Written in, GitHub stars
    api.github.com/repos/socketry/falcon
  3. 2026-10-29: links, Runtime, Install with
    socketry.github.io/falcon/guides/getting-started/index.html
  4. 2026-10-29: Maintainer, Maintained by, License, License model
    github.com/socketry/falcon/blob/main/license.md
  5. 2026-10-29: Minimum runtime
    github.com/socketry/falcon/blob/v0.57.0/falcon.gemspec
  6. 2026-10-29: Runs as
    socketry.github.io/falcon/guides/deployment/index.html
  7. 2026-10-29: First release
    rubygems.org/api/v2/rubygems/falcon/versions/0.2.0.json
  8. 2026-10-29: Current major version, Last release
    github.com/socketry/falcon/releases/tag/v0.57.0
  9. 2026-10-29: Contributors
    api.github.com/repos/socketry/falcon/contributors?per_page=1

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