Tidy XML/HTML

XML

Given file with XML content:

echo '<foo><bar/></foo>' > test.xml

You can pretty print the file with tidy:

tidy -i -xml test.xml

Output:

No warnings or errors were found.

<foo>
  <bar />
</foo>

To learn more about HTML Tidy see https://tidy.sourceforge.net
Please send bug reports to [email protected]
HTML and CSS specifications are available from https://www.w3.org/
Lobby your company to join W3C, see https://www.w3.org/Consortium

To produce a quiet output, pass the -q switch:

tidy -iq -xml test.xml

Output:

<foo>
  <bar />
</foo>

To modify (overwrite) the file, pass the -m switch:

tidy -iqm -xml test.xml

HTML

Given file with HTML content:

echo '<h1>Hello, world!</h1>' > index.html

To beautify HTML:

tidy -i index.html

Output:

line 1 column 1 - Warning: missing <!DOCTYPE> declaration
line 1 column 1 - Warning: inserting missing 'title' element
Info: Document content looks like HTML 3.2
2 warnings, 0 errors were found!

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">

<html>
<head>
  <meta name="generator" content=
  "HTML Tidy for Mac OS X (vers 31 October 2006 - Apple Inc. build 15.17), see www.w3.org">

  <title></title>
</head>

<body>
  <h1>Hello, world!</h1>
</body>
</html>

To learn more about HTML Tidy see https://tidy.sourceforge.net
Please send bug reports to [email protected]
HTML and CSS specifications are available from https://www.w3.org/
Lobby your company to join W3C, see https://www.w3.org/Consortium

Vim

If you’re inside a Vim editor, you can indent XML/HTML with the command:

:!tidy -im -xml -wrap 0 %