The Netbeans IDE supports a large number of programming languages. The supported list includes the famous PHP, JS, C/C++, Python, and a lot of other languages as well.

Code auto-completion is very helpful in agile development environments, where you're pumping out a new version as quickly as possible. In such environments, you need your IDE to be "as fast as you code"; hence Netbeans being of great assistance in such situations. The IDE will auto-complete your code (variable names / function references / library functions / classes / ids) wherever possible, so you can code at speed.

NetBeans is a free, GPL-licensed IDE. It can run on any computer with a Java virtual machine (JVM). Netbeans can therefore run on a variety of operating systems such as Windows, *nix, and Mac OS. Being open source means that developers can make changes to the code so that the IDE can better serve them.

The lint/hint plugins work very well.

This is useful for automating the storage, retrieval, logging, identification, and merging of revisions.

Netbeans not only debugs your code and points out errors, but it also gives you hints on which sections of your code could be further optimized.

NodeJS is efficient, lightweight and perfect for data-intensive real-time applications that run across distributed devices.

Grunt takes care of the tasks the user would like done, making his/her life easier.

This allows you to save the CSS/JS code, even if you use Java deployment (jar, war).

These include Ember, Angular, etc.

The Netbeans specific Chrome extension for debugging allows the IDE and the browser to know about debugging state, automatic de- and attaching of built-in browser development tools, editing sources directly in the browser with save-back feature, no browser restarts required etc.

NetBeans supports ECMA Script 6 since release 8.2 (now available as development release).

NetBeans has some powerful refactoring features for large JavaScript projects which are always useful. NetBeans, for example, can find all occurrences of a variable, function name, or operation, and the developer can change it to suit their needs. NetBeans takes care of the rest and changes the name accordingly on every occurrence throughout the project. It even shows a split-screen view of the changes before they happen.

Complete visibility of object structure and values on breakpoint stop when debugging.

From 8.2, supports Docker natively, but requires some fiddling to get it to work. Supports Elastic Beanstalk deployment with the Oracle Java suite installed.

Has built-in support for the most popular revision control systems.

NetBeans provides code completion and documentation for all Twig elements.

The most used composer commands can be done directly from IDE.

NetBeans can be extended beyond the basic tool that you get out of the box through community made custom plugins.

Supports Symfony1, Symfony2,Yii2 & Zend frameworks.

Supports Smarty Template Engine right out of the box.

ApiGen allows automatically generating documentation from specifically formatted comments. It's easy to use, supports traits, allows fuzzy searching for classes and highlighting docblocks using Markdown.

Supports static code analysis with phpstan

There's a built-in local history that lets you compare code changes and revert to a specific revision. Helpful when source code file accidentally overwritten.

Supports documentation generation through PHPDoc.

You can run Linux terminal inside the IDE.

Supports synchronization with projects stored remotely through FTP or SFTP.

PHPUnit is a testing framework. You can create test classes, run and see the code coverage directly from IDE interface.