Elgg : Elgg is an award-winning social networking engine, delivering the building blocks that enable businesses, schools, universities and associations to cr...
Kraken Framework : Kraken is the first and only multi-processed, multi-threaded, fault-tolerant framework for PHP. It has been written to provide easy and reliable API f...
Pyramid : Pyramid is a very general open source Python web framework.
Symfony : Symfony is a set of reusable PHP components and a PHP framework for web projects.
Phalcon is a web framework implemented as a C extension offering high performance and lower resource consumption.
