🆚 Express vs. Rack

Express is a minimal and flexible Node.js web framework that lets developers build web apps and APIs using routing, middleware, template engines, and support for serving static assets.

It provides a robust routing system with support for HTTP verbs, built-in middleware for JSON and URL-encoded parsing, error handlers, and a large ecosystem of third-party plugins available through npm.

Rack is a minimal, modular interface and invocation convention that operates between Ruby web servers and web applications to standardize how HTTP requests and responses are exchanged.

It translates raw HTTP requests into a CGI-style environment defined by RFC 3875, supports middleware stacking for step-by-step request and response processing, and is implemented by servers such as Phusion Passenger, Puma, Unicorn, and Thin.

Popularity

Determined by the number of sites using each technology.

• ⭐ 4th most popular in Taiwan in the Backend Frameworks category.
• ⭐ 5th most popular in Brazil in the Backend Frameworks category.
• ⭐ 5th most popular in Argentina in the Backend Frameworks category.
• ⭐ 5th most popular in Malaysia in the Backend Frameworks category.
• ⭐ 5th most popular in Chile in the Backend Frameworks category.

• ⭐ 8th most popular in Taiwan in the Backend Frameworks category.
• 🔥 11st most popular in Japan in the Backend Frameworks category.
• 🔥 11st most popular in Australia in the Backend Frameworks category.
• 🔥 11st most popular in New Zealand in the Backend Frameworks category.
• 🔥 13rd most popular in Canada in the Backend Frameworks category.

Top sites

Top-ranked sites that use these technologies.

Compare alternatives

Technologies with similar characteristics.

• Express vs. Hypernova
• Express vs. Sails
• Express vs. Sapper
• Express vs. AdonisJS
• Express vs. Koa

• Rack vs. ASP.NET
• Rack vs. Ruby on Rails
• Rack vs. CGI
• Rack vs. ESI
• Rack vs. Bridgetown

• Express technology profile
• OpenJS Foundation company profile

• Rack technology profile