socketry/falcon

Health v2 · maintenance only

Adoption not part of the score

3024 stars · 103 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

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

application · maturity active

http-server web-framework concurrency web-development backend developer-tools ruby cross-platform rack http2 tls async fiber-based rails linux macos

Member repositories

For agents

markdown · JSON · MCP: product_card(name="socketry/falcon")