OutSystems Platform!

A free, open-source Integrated Development Environment for software developers. You get all the tools you need to create professional desktop, enterprise, web, and mobile applications with the Java language, C/C++, and even dynamic languages such as PHP, JavaScript, Groovy, and Ruby. NetBeans IDE is easy to install and use straight out of the box and runs on many platforms including Windows, Linux, Mac OS X and Solaris.The download section conveniently offers prepackaged bundles/installers for each supported programming language containing only required plugins. »

Aptana Studio is a complete web development environment that combines powerful authoring tools with a collection of online hosting and collaboration services that help you and your team do more. Includes support for PHP, CSS, FTP, and more...

OpenShift is Red Hat's free, auto-scaling Platform as a Service (PaaS) for applications. As an application platform in the cloud, OpenShift manages the stack so you can focus on your code.

Google App Engine is a free* platform for developing and hosting web applications in Google-managed data centers. App Engine offers fast development and deployment; simple administration, with no need to worry about hardware, patches or backups; and effortless scalability.

slap is a Sublime-like terminal-based text editor that strives to make editing from the terminal easier. It has:

The C++ IDE for professional developers.

Bonita BPM is a BPM-based application platform that is designed to help users build highly engaging, personalized business applications that can be continuously updated to adapt to business changes in real time. Bonita BPM provides an integrated suite of capabilities and is composed of the following core modules: * an Eclipse based, modeling and development environment which allows business analysts and developers to graphically design and share processes using the industry standard BPMN 2.0 notation. * a web based, drag and drop designer, based on HTML5 and Angular JS, to create personalized user interfaces for BPM applications, including web pages and process forms. It is highly extensible so developers can build their own interfaces using standard technologies. * a powerful and scalable Java-based process orchestration engine build on service-oriented architecture. It is flexible enough to adapt to any information systems architecture, from simple to complex while supporting intensive workload. * a web-based, out-of-the-box, portal for users and administrators to perform their day to day task. While this is a generic BPM application, users can also completely customize the end-user interface. »

Mendix enables companies to build, integrate and deploy web and mobile applications faster and with better results, effectively driving ROI in days not months.

Unlike other full-stack frameworks available on the market, the platform offers a higher level of abstraction and a wider range of out-of-the-box features, while still allowing direct access to the low-level API.

Write once, deploy anywhere

IYOPRO, Improve your Processes, is a professional online BPM and workflow system that utilizes the BPMN 2.0 standard. Run it in less than one minute - without installation - always in the latest version. IYOPRO offers modelling, simulation and workflow automation in three editions. There are various operating modes available: SaaS within the browser, installed out of the browser and on premise.

Pelles C is a comprehensive development suite that can help you create apps compatible with Windows and ARM platforms.

Imixs-Workflow in a scalable, transactional, robust and simple deployable open source workflow engine for human-Centric BPM. Human-centric business process management supports human skills and activities by a task oriented workflow-engine. Imixs-Workflow is based on the Java Enterprise Edition and support the BPMN 2.0 Standard. Imixs Workflow is free software. You can run it on any platform, and use it for any kind of business application.

Typically 5x faster to market than traditional software development, Linx uses robust, drag-and-drop components to quickly and efficiently create, integrate, connect or automate business applications.