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, as well as C/C++, PHP, JavaScript, Groovy, and Ruby. It easy to install and use straight out of the box and runs on many operating systems including Windows, Linux, Mac OS X and Solaris. The NetBeans IDE 6.8 is the first integrated development environment to provide complete support of Java EE 6 and the GlassFish Enterprise Server v3 platform. Developers hosting their open-source projects on kenai.com benefit from improved instant messenging and issue tracking integration in the IDE, including full support for JIRA. Other improvements include new powerful C/C++ profiling features, support for web application development with PHP 5.3 and the Symfony framework, and improved code completion, hints and navigation in JavaFX projects.

An IDE to create professional desktop, enterprise, web, and mobile applications with the Java language, as well as C/C++, PHP, JavaScript, Groovy, and Ruby.

NetBeans

Eclipse Che is a developer workspace server and cloud IDE. Che defines workspaces that include their dependencies including embedded containerized runtimes, Web IDE, and project code. This makes workspaces distributed, collaborative, and portable to run anywhere on a desktop or a server. All Che services are reachable through RESTful APIs. 

Eclipse Che - Next-Generation IDE

Eclipse started as a Java IDE, but has since grown to be much, much more. Eclipse projects now cover static and dynamic languages; thick-client, thin-client, and server-side frameworks; modeling and business reporting; embedded and mobile; and, yes, we still have the best Java IDE.

Eclipse is the most popular and widely used IDE. It supports Java, PHP, C / C++, Mobile, Rich client applications, Modeling tools.

Eclipse

Aptana Studio harnesses the flexibility of Eclipse and focuses it into a powerful web development engine. It helps to build web applications quickly and easily. It could be downloaded as Eclipse plugin or standalone. It supports popular JavaScript libraries and frameworks such as jQuery, prototype, scriptaculous, Ext JS and more. It supports Java, Python, PHP, Ruby based development. It has all features required for an IDE like file / project browser, Debugger, Code assit, Code Search and lot more. <img src="/AppImages/Article/aptana-img1.jpg" alt="" class="float-center">

Aptana Studio harnesses the flexibility of Eclipse and focuses it into a powerful web development engine. It helps to build web applications quickly and easily. It could be downloaded as Eclipse plugin or standalone.

Aptana - Web development IDE

The CDT Project provides a fully functional C and C++ Integrated Development Environment based on the Eclipse platform. Features include: support for project creation and managed build for various toolchains, standard make build, source navigation, various source knowledge tools, such as type hierarchy, call graph, include browser, macro definition browser, code editor with syntax highlighting, folding and hyperlink navigation, source code refactoring and code generation, visual debugging tools, including memory, registers, and disassembly viewers. 

Eclipse CDT - C/C++ Development Tooling

IntelliJ IDEA is a code-centric IDE focused on developer productivity. IntelliJ IDEA deeply understands your code and gives you a set of powerful tools without imposing any particular workflow or project structure. IntelliJ IDEA is your dream pair-programmer who knows its way around the codebase, makes great suggestions right when you need them, and is always ready to help you shape your code. Lightweight IDE for plain Java development, with XML and Groovy support, Most intelligent coding assistance, refactoring and code inspection tools, Integration with JUnit and TestNG, popular VCS tools, Ant and Maven, Supports Java, Groovy, XML, Scala, Clojure. Enterprise edition is available and it has lot more feature than Open Source Edition

IntelliJ IDEA is a code-centric IDE focused on developer productivity. IntelliJ IDEA deeply understands your code and gives you a set of powerful tools without imposing any particular workflow or project structure. IntelliJ IDEA is your dream pair-programmer who knows its way around the codebase, makes great suggestions right when you need them, and is always ready to help you shape your code.

IntelliJ IDEA

BlueJ is a development environment that allows you to develop Java programs quickly and easily. BlueJ has several features not seen before in other IDEs. Its object bench, code pad, and scope colouring were all original BlueJ features. Objects can be inspected while the program is running. The contents of fields are displayed to aid understanding and debugging.

BlueJ - IDE for Java

StatET is an Eclipse based IDE (integrated development environment) for R. It offers a set of mature tools for R coding and package building. This includes a fully integrated R Console, Object Browser and R Help System, whereas multiple local and remote installations of R are supported.

StatET - Eclipse based IDE and Tools for R

DrJava is a lightweight programming environment for Java designed to foster test-driven software development. It includes an intelligent program editor, an interactions pane for evaluating program text, a source level debugger, and a unit testing tool.

DrJava - Lightweight development environment for writing Java programs

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