Prepros

Prepros is a "working environment" (workflow) table for preprocessors like Sass/compass, LESS and integration, Stylus-based HTML and CSS projects.This software is open source (MIT license), available in Windows and Mac, free in its basic version (wide) and offers many features optimizations and automation.Prepros automatically compiles less, Sass, SCSS, Stylus, Jade, Slim, Coffeescript, syntactic, Haml and Markdownlanguage. Nothing much.You can choose the output format for the CSS file, namely: normal, compact, or they are.In addition, the tool provides records management and enough practical errors.Prepros provides the ability to compress images in your project (JPG, PNG, GIF). Note, however, that the image optimization tool is manual (picture by picture) and not worth worth the tenors in the field, even if it is already very good.Prepros minifie and concatenates (combines) JavaScript files not to have one in production.No worry about the prefixes of manufacturers (- moz-, - webkit-, etc.) because the tool can do automatically for you.And it does so very elegant since it recognizes even the old syntax of properties to make them compatible browser (e.g. for CSS3 gradients or different versions of flexbox module).Associated with an extension for Chrome, Prepros offers the possibility of viewing your project online and especially to see the page automatically update.It is also possible to test mobile and tablets through the built-in Server and the IP address that is provided by the tool.This last feature (for the offer of payment - 19USD) you can transfer all files, or only those modified to an FTP server.In the end, Prepros is a particularly suitable framework: store only your pure file that is automatically compiled, prefix, minifie, put on line and updated in the browser.There are other tools of this type: CodeKit (Mac only) and Mixture.io.If you know one of these tools, feel free to share your experience here.