online-code-beautifier-and-formatter
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/