Uglify Online

Compress options

join consecutive statements with the "comma operator"

optimize property access: a["foo"] → a.foo

discard unreachable code

discard "debugger" statements

some unsafe optimizations

[unsafe_comps]

optimize if-s and conditional expressions

optimize comparisons

evaluate constant expressions

optimize boolean expressions

optimize loops

drop unused variables/functions

hoist function declarations

[keep-fargs]

[keep-fnames]

hoist variable declarations

optimize if-s followed by return/continue

join var declarations

try to cascade `right` into `left` in sequences

drop side-effect-free statements

object property access never has side effects?

(function(){})() → !function(){} where returned value is discarded

[screw_ie8]

[drop_console]

[angular]

warn about potentially dangerous optimizations/code

Mangle options

Mangle

Output options

start indentation on every line (only when `beautify`)

indentation level (only when `beautify`)

quote all keys in object literals?

add a space after colon signs?

output ASCII-safe? (encodes Unicode characters as ASCII)

[unescape_regexps]

escape "</script"?

informative maximum line width (for beautified output)

maximum line length (for non-beautified output)

beautify output?

use brackets every time?

use semicolons to separate statements? (otherwise, newlines)

output comments?

[shebang]

[preserve_line]

[screw_ie8]

Quoting style

About... @

About

I only authored this page. It would not exist without the following supporting cast.

Libraries and plugins: UglifyJS 2, jQuery, Bootstrap, Bootstrap TouchSpin, Bootstrap Switch, and Bootstrap Select.

Technologies: HTML5, CSS3, and Javascript.

Software: Notepad++, Node.js, npm, Grunt, and Browserify.

Resources: Mozilla Developer Network, Can I use..., and Google Search.

And many others.