Slim Framework

Health v2 · maintenance only

Adoption not part of the score

12279 stars · 1964 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Slim is a PHP micro-framework for quickly writing simple yet powerful web applications and APIs. It provides a fast HTTP router, concentric middleware support, PSR-7 message handling, and PSR-11 dependency injection while staying minimal compared to full-stack frameworks.

Use cases

• build a REST API in PHP
• create a small web application without a heavy framework
• rapidly prototype an HTTP endpoint
• add routing and middleware to a lightweight PHP project
• expose an API that publishes or consumes JSON data
• replace Laravel or Symfony for a minimal microservice

When to choose

• you want a minimal, fast PHP framework with only routing and middleware
• you need PSR-7/PSR-15 compliance and freedom to pick your own components
• you are building small APIs, microservices, or prototypes
• full-stack frameworks like Laravel or Symfony feel like overkill

When to avoid

• you need batteries-included features like ORM, auth scaffolding, or templating out of the box
• you are building a large monolithic application with complex conventions
• your team prefers an opinionated full-stack framework

Facets

framework · maturity active

web-framework http-server routing middleware web-development backend apis php cross-platform micro-framework psr-7 psr-15 psr-11 rest-api composer web-server

Member repositories

For agents

markdown · JSON · MCP: product_card(name="slimphp/Slim")