I use Grunt [1] and (especially) grunt-contrib-watch [2] for this. Using Grunt also has the benefit of automatically recompiling CSS files and/or concatenating

I use Grunt [1] and (especially) grunt-contrib-watch [2] for this. Using Grunt also has the benefit of automatically recompiling CSS files and/or concatenating JS files etc. But your mileage may vary, of course. [1] http://gruntjs.com/ http://gruntjs.com/ [2] https://github.com/gruntjs/grunt-contrib-watch https://github.com/gruntjs/grunt-contrib-watch