It supports cross-platforms like Windows, Mac and Linux. It provides editor with integrated compiling.

It provide CoffeeScript, SASS, Compass and LESS editing and makes modern web development easy in Visual Studio.

It is an open-source Java-based IDE. This helps in the quick development of your desktop, mobile and web applications as well as HTML5 applications that involve HTML, JavaScript and CSS.

It is a general purpose graphical text editor for Mac OS X. It features declarative customizations, recordable macros, snippets, shell integration, open documents tabs and an extensible bundle system.

The vim bundle adds functionalities like indenting, highlighting and auto completion for the dynamic stylesheet language LESS.

It contains less-css-model that provides an Emacs mode for LESS CSS (lesscss.org); Emacs supports compile-on-save.

WebStrom is a lightweight and powerful IDE. It is perfectly equipped for complex client-side and server development with Node.js. PhpStorm is an PHP IDE, which supports deep code understanding, and provides top-notch coding assistance and support for all major tools and frameworks.

It is a lightweight, powerful and an open-source code editor that helps web designers and front-end developers.

It is a portable integrated development environment (IDE) primarily for PHP. It also supports HTML, CSS and JavaScript development and plugins are available for Drupal, WordPress, Smarty, Joomla, JQuery, Facebook, Codeigniter, Yii and CakePHP.

It is a quick, clean, lightweight and portable IDE. It is a full-size development suite that helps you work smart and fast.

It is an open-source and easily customizable IDE. It utilizes CodeMirror.net, pty.js and other libraries.

This is a modern web editor for HTML5, CSS3, JavaScript and more. With this, you can edit, preview, validate publish and manage projects from modern standards compliant editor.

LESS syntax for sublime text provides syntax highlighting for .less files, along with snippets.

Sublime text 2 and 3 plugin to compile .less files to CSS when you save. It requires lessc installed on PATH.

LESS build system for sublime text 2 which provides two build systems for LESS files, both minified and non-minified.

It is a simple plugin for sublime text 2 to trigger a build when you click Save. Works well with pre-processors like LESS, Compass and any others.

By extending the Eclipse IDE, this plugin provides useful features to edit and compile LESS stylesheets.

This Eclipse plugin automatically transpiles your files like LESS, SASS, CoffeeScript, etc.

This extension makes LESS files open with CSS language service.

This extension lets you perform common tasks much easier and adds useful features to Visual studio for web developers.

It extends Visual Studio with a lot of new features which are not specific to a specific language or editor.

This helps you in the development tasks that involve ASP.NET