HTML Beautifier

A normaliser/beautifier for HTML that also understands embedded Ruby. Ideal for tidying up Rails templates.

What it does

• Normalises hard tabs to spaces
• Removes trailing spaces
• Indents after opening HTML elements
• Outdents before closing elements
• Collapses multiple whitespace
• Indents after block-opening embedded Ruby (if, do etc.)
• Outdents before closing Ruby blocks
• Outdents elsif and then indents again
• Indents the left-hand margin of JavaScript and CSS blocks to match the indentation level of the code

Usage

From the command line

To update files in-place:

$ htmlbeautifier file1 [file2 ...]

or to operate on standard input and output:

$ htmlbeautifier < input > output

In your code

require 'htmlbeautifier'

beautiful = HtmlBeautifier.beautify(messy)

You can also specify the number of spaces to indent (the default is 2):

beautiful = HtmlBeautifier.beautify(messy, tab_stops: 4)