* lightweight Inversion-of-Control container with first-class support for Dependency Injection. * Powerful, easy-to use Model-View-Controller implementation. * Enables you to use the powerful techniques of Aspect Oriented Programming. * Validation and filtering framework with built-in rules as well as support for custom validation of any object.

* HTTP Router: Slim provides a fast and powerful router that maps route callbacks to specific HTTP request methods and URIs. It supports parameters and pattern matching. * Middleware: Build your application with concentric middleware to tweak the HTTP request and response objects around your Slim app. * PSR-7 Support: Slim supports any PSR-7 HTTP message implementation so you may inspect and manipulate HTTP message method, status, URI, headers, cookies, and body. * Dependency Injection: Slim supports dependency injection so you have complete control of your external tools. Use any Container-Interop container.