What are the best online code beautifier and formatter out there? I'm not asking for highlighters. Any language will do.
CSS: code beautifier
HTML: HTML Tidy, CleanUp HTML or the general purpose Pretty Diff
Javascript: http://jsbeautifier.org/
PHP: http://beta.phpformatter.com/
SQL: http://dpriver.com/pp/sqlformat.htm
XML: http://chris.photobooks.com/xml/default.htm
Colour all: http://quickhighlighter.com/
For PHP, Java, C++, C, Perl, JavaScript, CSS you can try:
You can use Perl::Tidy for Perl.
JsonLint is good for validating and formatting JSON.
What language?? There are different tools for almost every imaginable programming language, since they all have different syntactic rules and conventions.
Good ol' indent is a nice, customizable, command-line utility to format C and C++ programs.
It depends of the language, and of the architecture you are using.
For example, in a php platform, you can format almost language with GeSHi
As bluish comments, GeSHi is a generic syntax highlighter, with no beautification feature. It is more used on the server side, and combine it with a beautification tool can be tricky, as illustrated with this GeSHi drupal ticket.
I've used Quick Highlighter a lot. Works great for a huge list of languages.
Use gist.github.com. There is a multi-language support(java, c, c++, c#, vb, haskell, ruby, javascript, lua, HTML, SQL, Tcl, Perl, JSON, groovy...)
Here is a sample "Generate LiquiBase changeLogs using Groovy"
来源：https://stackoverflow.com/questions/206441/online-code-beautifier-and-formatter