LiveReload!

Koala is a gui for Less, Sass, Compass and CoffeeScript. Koala can run in windows, mac, and linux.

Compile Less, Sass, Scss, Stylus, Jade, Coffeescript, Haml and Markdown with live browser refresh.Prepros is a web design & development tool that does all the heavy lifting needed to preprocess, optimize and test your sites and keeps your workflow supercharged.

CodeKit automatically compiles Less, Sass, Stylus, CoffeeScript, Jade & Haml files. It effortlessly combines, minifies and error-checks Javascript. It supports Compass. It even optimizes jpeg & png images, auto-reloads your browser and lets you use the same files across many projects. And that's just the first paragraph.

Say goodbye to Alt-Tab. Live.js makes sure you're always looking at the latest version of the page you're working on, whether you're writing HTML, CSS or Javascript.

Scout-App is a cross-platform desktop app that delivers the power of Sass to the hands of web designers.

Fire.app is a menu bar only app for dead easy HTML prototyping. It supports Sass/Compass, Haml, ERB, Markdown, CoffeeScript, and more.

Write your LESS markup. Crunch it into a CSS file. Link the crunched CSS file in your HTML. CRUNCH allows you to organize your LESS/CSS styles into some well-organized libraries, and then just serve a single file to the browser. It also renders your page without relying on JavaScript or command-line geekery.

The life-saver app for web developers !Easily check syntax, minify or process all your web assets (stylesheets, scripts and templates) as you edit them with your favorite text editor!

LivePage is a developer tool which reloads website resources (such as CSS, HTML and JavaScript) as they update on the server, so you are always looking at the most up-to-date version of a web page. It can make developing websites a lot faster, by helping productivity.