- Sinatra - Sinatra is a DSL for quickly creating web applications in Ruby with minimal effort
- sinatra-contrib - Collection of common Sinatra extensions, semi-officially supported
- sinatra-param - Parameter validation and type coercion for Sinatra
- sinatra-session - Small extension for Sinatra apps that provides several convenient settings and methods when working with HTTP cookie-based sessions
- dotenv - Shim to load environment variables from
.envintoENVin development.