li3 (software)

li₃
DeveloperUnion of RAD
ReleaseNovember 2009 (2009-11)
Stable release
2.0.2 / 2025-08-18[±]
Written inPHP
Operating systemCross-platform
TypeWeb application framework
LicenseBSD
Websiteli3.me Edit this at Wikidata
Repository

li₃ (formerly lithium) is a full-stack web framework, for producing web applications. It is written in PHP and is based on the model–view–controller development architecture. It is described as adhering to no-nonsense philosophies.

The project is sponsored by Engine Yard, Radify and Atelier Disko.