Alternatives to K2F for all platforms with any license

Django

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

Free Open Source Mac Windows Linux BSD Python
Security focused Add a feature

84 Like
Laravel

Laravel is a clean and classy PHP framework with minimal configuration and expressive syntax. RESTful routing; ORM; beautiful code.

Free Open Source Mac Windows Linux Web Self-Hosted
No features added Add a feature

65 Like
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...

Free Open Source Mac Windows Linux Self-Hosted
No features added Add a feature

65 Like
Ruby on Rails

Ruby on Rails is an open source full-stack web application framework for the Ruby programming language. Rails is a full-stack framework, meaning that it gives the Web...

Free Open Source Mac Windows Linux Ruby
Object-oriented Language Add a feature

55 Like
Symfony

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

Free Open Source Mac Windows Linux Web PHP
No features added Add a feature

49 Like
Pimcore

Pimcore is an award-winning data management and customer experience management software powered by open-source technology.

Free Open Source Mac Windows Linux Web Self-Hosted
No features added Add a feature

19 Like
CakePHP

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

Free Open Source Mac Windows Linux Web Self-Hosted ... PHP
No features added Add a feature

20 Like
Yii Framework

Yii is a high-performance component-based PHP framework best for Web 2.0 development. Yii comes with rich features: MVC, DAO/ActiveRecord, I18N/L10N, caching...

Free Open Source Mac Windows Linux Web
No features added Add a feature

32 Like
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...

Free Open Source Mac Windows Linux Web
No features added Add a feature

25 Like
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 Windows Linux
Asynchronous Add a feature

11 Like
Agile Toolkit

Agile Toolkit is a PHP framework for developing Web User Interfaces. Inspired by desktop GUI it provides a full object-oriented foundation for Business and Presentation...

Free Open Source Mac Windows Linux Web
Portable Add a feature

25 Like
FuelPHP

Fuel is a simple, flexible, community driven PHP 5.3 web framework based on the best ideas of other frameworks with a fresh start and a design pattern in HMVC. The...

Free Open Source Mac Windows Linux Web
No features added Add a feature

11 Like
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 Windows Linux Web Python
No features added Add a feature

8 Like
PHP Fat-Free Framework

FAT-FREE is a powerful yet lightweight PHP 5.3+ Web development framework designed to help you build dynamic and robust applications - fast! Condensed in a single...

Free Open Source Mac Windows Linux
Community based Condensed in a single small PHP file Lightweight Modular System ... Nginx Object Relational Mapping Unit Testing Add a feature

19 Like
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 Windows Linux
No features added Add a feature

9 Like