Sinatra

Sinatra is a free and open-source Ruby web application framework and domain-specific language (DSL) for quickly creating web applications with minimal effort. It focuses on simplicity and flexibility, allowing developers to define routes and actions directly, making it ideal for small…

Key facts

First appeared: 2007
Category: web_framework
Problem solved: Sinatra was created to solve the problem of excessive overhead and opinionated structure found in full-stack frameworks like Ruby on Rails for smaller, simpler web applications or APIs. It offered a lightweight, minimalist alternative, providing only the essentials for routing and HTTP handling without imposing an MVC architecture or database ORM.
Platforms: Linux, web, macOS, Windows

Related technologies

Rack
Haml
ActiveRecord
PostgreSQL
Redis
Sequel
Ruby
Sass
RSpec
ERB
Capybara

Notable users

Various startups and individual projects requiring lightweight web services
GitHub (historically for various internal tools and specific services)
Heroku (internal services)