CodeIgniter is a powerful PHP framework with a very small footprint, built for developers who need a simple and elegant toolkit to create full-featured web applications. Originally released by EllisLab in 2006 and now maintained by the British Columbia Institute of Technology, CodeIgniter 4 is a modern rewrite with namespaces, PSR-4 autoloading, and improved request/response handling.
The framework is famous for blazing-fast performance and clear documentation â the kind of toolkit you can read end-to-end in a weekend.
Powerful PHP framework with a tiny footprint. Built for developers who need simple, elegant toolkits.
⨠Features
Less than 1.2MB download. Boots in milliseconds, runs comfortably on shared hosting.
Famously quick â minimal abstractions, opcode-cache friendly, no reflection-heavy magic.
User Guide is famously readable. Newcomers go from zero to productive in a single afternoon.
Before/after request filters for auth, CORS, throttling. Composable, named, route-scoped.
Lightweight ORM-ish models with entities, soft deletes, validation, and event hooks.
