Choose Mezzio for an actively maintained PSR-15 middleware micro-framework from the Laminas ecosystem, directly comparable to Slim.
PSR-15 Middleware Microframework
- 396
- PHP
- BSD-3-Clause
PHP micro-framework
Slim is a PHP micro-framework for building web applications and APIs using PSR-7 and PSR-15 middleware.
Same problem, same approach. Swapping one for another is a config change, not a rewrite.
Choose Mezzio for an actively maintained PSR-15 middleware micro-framework from the Laminas ecosystem, directly comparable to Slim.
PSR-15 Middleware Microframework
Solves the same problem with a different architecture or at a different layer. Expect to rewrite the integration.
Choose Symfony for a full-stack PHP ecosystem with reusable components and more structure than Slim's micro core.
The Symfony PHP framework
Choose Yii2 when you need a full-stack PHP framework with built-in security and rapid prototyping features rather than Slim's minimal approach.
Yii 2: The Fast, Secure and Professional PHP Framework
Choose Windwalker when you need a modular RAD PHP framework instead of Slim's lightweight micro-framework setup.
PHP Rapid Application Development Framework
Choose Spiral for a high-performance full-stack PHP framework with many built-in components instead of Slim's minimal routing and middleware.
High-Performance PHP Framework
An earlier or more limited way to do the job. Still the right call when you need something small, proven, or CPU-only.
Choose for Swoole-based REST micro-services if you accept a project with no recent maintenance, but it is not a drop-in peer.
Swoole, PSR-15, PSR-7, PSR-11 lightweight modular anti-framework for REST micro-services.
Previous PSR-15 middleware micro-framework, predecessor to Mezzio; only relevant for legacy Expressive codebases.
PSR-15 middleware in minutes!
These projects were analysed and named Slim among their alternatives. The relationship is not symmetric — how Slim rates them is a separate judgement, made when Slim is analysed in its own right.
calls Slim “Micro-framework for small APIs and apps; choose when you need minimal dependencies and maximum performance over Laravel's full-stack features.”
Laravel is a web application framework with expressive, elegant syntax. We’ve already laid the foundation for your next big idea — freeing you to create without sweating the small things.
calls Slim “A lightweight PHP micro-framework; choose it for small APIs or apps that don't need Symfony's full stack and want a far lighter runtime.”
The Symfony PHP framework
calls Slim “microframework for lightweight HTTP apps/APIs; choose when full-stack features are overkill.”
Yii 2: The Fast, Secure and Professional PHP Framework