Free JavaScript compressor available online

(Via Ajaxian) The Dojo Toolkit is one of the biggest JavaScript libraries out there, weighing in at about 4MBover 250KB of JavaScript code as written. That’s why the makers of the toolkit developed a JavaScript compressor to reduce the library to a reasonable size for use on real-world Websites. This compressor has the advantage over several others out there that it actually parses the JavaScript code it is compressing–using the Mozilla Rhino JavaScript parser–rather than simply relying on a set of regular expressions to make a best guess as to what parts of the code may be compressed safely.

Now that same compressor is available online through a convenient Web form, called ShrinkSafe. It lets you upload one or more JavaScript files, and it will give you back a single, compressed JavaScript file for you to use on your site.