onlinecodebeautifierandformatter

http://stackoverflow.com/questions/206441/online-code-beautifier-and-formatter

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/