Django

Django is a high-level Python Web framework that encourages rapid development and clean, pragmatic design.

Free Open Source Mac OS X Windows Linux BSD Python

CodeIgniter

PHP (version 4 or 5) framework with a thin model layer. Includes an ActiveRecord class for database agnostic (mostly) data retrieval. Good community support in its forums. Further development available via GitHub: https://github .

Free Open Source Mac OS X Windows Linux Self-Hosted

CUBA.platform

A Full Stack Enterprise Java Framework with lots of out of the box functionality and amazing tooling to manage the project.

Free Open Source Mac OS X Windows Linux

Ruby on Rails

Ruby on Rails is an open source full-stack web application framework for the Ruby programming language.

Free Open Source Mac OS X Windows Linux Ruby

Symfony

Symfony is a set of reusable PHP components and a PHP framework for web projects.

Free Open Source Mac OS X Windows Linux Web PHP

Zend Framework

Extending the art & spirit of PHP, Zend Framework is based on simplicity, object-oriented best practices, corporate friendly licensing, and a rigorously tested agile codebase.

Free Open Source Mac OS X Windows Linux Web

CakePHP

CakePHP is a rapid development framework for PHP that provides an extensible architecture for developing, maintaining, and deploying applications.

Free Open Source Mac OS X Windows Linux Web Self-Hosted PHP

Play!

Play is a web application framework, written in Scala and Java, which follows the model–view–controller (MVC) architectural pattern. The Play framework makes it easier to build web applications with Java & Scala.

Free Open Source Mac OS X Windows Linux

Koa

Expressive middleware for node.js using generators via co to make web applications and APIs more enjoyable to write. Koa's middleware flow in a stack-like manner...

Free Open Source Mac OS X Windows Linux

Grails

Grails is a high-productivity web framework based on the Groovy language that embraces the coding by convention paradigm, but is designed specifically for the Java...

Free Open Source Mac OS X Windows Linux

Pyramid

Pyramid is an open source web framework written in Python and is based on WSGI. It is a minimalistic web framework inspired by Zope, Pylons and Django.

Free Open Source Mac OS X Windows Linux Web Python

Willer Framework

Willer is a PHP framework, highlighting the features of ORM, MVC, and Bundle.

Free Open Source Mac OS X Windows Linux

ViUR.is

ViUR – the Information System for the Google App Engine™ plattform – is a »sandbox« for designers and developers. With the help of ViUR you can easy build web...

Free Open Source Mac OS X Windows Linux Self-Hosted

Pedestal

Pedestal is a web application framework written in Clojure that aims to bring both the language and its principles to client and server-side development.

Free Open Source Mac OS X Linux

Akelos

Port of Ruby on Rails development framework and designed to work for PHP4 and PHP5. The Akelos PHP Framework is a web application development platform based on the MVC...

Free Open Source Mac OS X Windows Linux

bitcore

A pure and powerful JavaScript Bitcoin library or blockchain library.

Free Open Source Windows Linux Mac JavaScript

TomP2P

A P2P-based high performance key-value pair storage library.

Free Open Source Mac OS X Windows Linux

Pylons Framework

Pylons Framework is an open source Web application framework written in Python. It makes extensive use of the Web Server Gateway Interface standard to promote...

Free Open Source Mac OS X Windows Linux Web

Bitweaver

Bitweaver is a free and open source web application framework and content management system. Its speed and power are ideal for large-scale community websites and...

Free Open Source Mac OS X Windows Linux BSD Web