UglifyJS: Online JavaScript minifier

// Documentation of the options is available at https://github.com/mishoo/UglifyJS2
{
  parse: {
    strict: false
  },
  compress: {
    sequences     : true,
    properties    : true,
    dead_code     : true,
    drop_debugger : true,
    unsafe        : true,
    unsafe_comps  : true,
    conditionals  : true,
    comparisons   : true,
    evaluate      : true,
    booleans      : true,
    loops         : true,
    unused        : true,
    hoist_funs    : true,
    hoist_vars    : false,
    if_return     : true,
    join_vars     : true,
    cascade       : true,
    side_effects  : true,
    negate_iife   : true,
    screw_ie8     : false,

warnings      : true,
    global_defs   : {}
  },
  output: {
    indent_start  : 0,
    indent_level  : 4,
    quote_keys    : false,
    space_colon   : true,
    ascii_only    : false,
    inline_script : true,
    width         : 80,
    max_line_len  : 32000,
    beautify      : true,
    source_map    : null,
    bracketize    : false,
    semicolons    : true,
    comments      : /@license|@preserve|^!/,
    preserve_line : false,
    screw_ie8     : false
  }
}

UglifyJS is an excellent tool to help you minify your JavaScript! It's a tried and tested tool, used by libraries such as jQuery.

This is a simple wrapper for the browser around the minifier; the hard work is done by Mihai Bazon. If you need an automated solution, I suggest checking out the source code, intended for Node.JS.

If you want to fork this project ort help improve this tool? It's on Github.

This wrapper for the browser was created by Dan Wolff.

The minified output (921 bytes, saved 59.23%)