# socketry/falcon

A high-performance web server for Ruby, supporting HTTP/1, HTTP/2 and TLS.

Repository: https://github.com/socketry/falcon
Canonical: https://ross.abutalabs.com/products/socketry-falcon
Homepage: https://socketry.github.io/falcon/
Language: Ruby
License: MIT
License Family: permissive
Topics: ruby, server, http-server, async, falcon, async-http, asynchronous, concurrent
Last push: 2026-08-11T10:31:01+00:00

## Health v2 (maintenance only)
Score: 97/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 97, release rhythm 96, longevity 100
- inputs: {"age_days": 3366, "days_push": 22, "days_rel": 25, "gap_med": 8.0, "n_releases_24m": 9}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3024, forks 103 (observed 2026-08-28T04:07:38.585188+00:00)

## What it is
Falcon is a high-performance, multi-process, multi-fiber rack-compatible HTTP web server for Ruby, built on the async ecosystem. It natively supports HTTP/1, HTTP/2, and TLS, and can replace Puma or Nginx+Passenger for both development and production.

## Use cases
- serve ruby rack applications in production
- replace puma with a faster ruby web server
- host rails apps with http/2 and tls support
- run a development web server for ruby apps
- handle many concurrent requests without blocking
- simplify deployment by removing nginx from the stack

## When to choose
- you run Rack-based Ruby apps (Rails, Sinatra) and want high concurrency via fibers
- you want native HTTP/2 and TLS without a separate reverse proxy
- you want one server for both development and production to reduce environment-specific bugs

## When to avoid
- your stack is not Ruby or not Rack-compatible
- you depend on server-specific features or tooling built around Puma or Unicorn
- your team has no experience debugging asynchronous fiber-based concurrency

## Facets
- artifact type: application
- maturity: active
- function: http-server, web-framework, concurrency
- domain: web-development, backend, developer-tools
- platform: ruby, cross-platform
- tags: rack, http2, tls, async, fiber-based, rails, linux, macos

## Member repositories
- socketry/falcon (main) score 97

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:38.585188+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:46:52.918417+00:00, confidence not recorded.
  - readme: https://github.com/socketry/falcon (fetched 2026-08-28T04:07:38.585188+00:00, sha 1e4f08981225)
  - homepage: https://socketry.github.io/falcon/ (fetched 2026-08-29T09:44:59.401405+00:00, sha 26338dd068a0)
- Data as of 2026-08-30T08:39:29.467469+00:00.