* 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.

* Modular: Building blocks that can be used piece by piece with other applications or frameworks. * Secure: All the cryptographic and secure coding tools you need to do things right. * Extensible: Easy to adapt the framework to your needs. * Community: A vibrant and active contributor and user base for getting help and giving back. * High Performing: Engineered with performance tuning in mind. * Enterprise Ready: A proven history of success running business critical and high-usage applications.