JSO is an online JavaScript minifier that allows to compress JS files from their original form, as example whitespace and comments are not needed for JavaScript execution, minified js file will remove them. This app can run by Copy and paste javascript code or by uploading and combine with multiple files. JSO use UglifyJS3 and babili - standalone for all JavaScript minification and compression.

Why You Should Compress JavaScript

• By compressing or minifiy Javascript files we can: Have quicker page load times for our Reader. 
• Reduced bandwidth consumption of blog. 
• Reduced number of HTTP requests when combining many JavaScript files into one compressed file 
• Reduced file size and speedup script execution times.