FixIndent is a free and open source plugin for Panic`s Coda that works as a basic code prettifier by automatically indenting your code correctly.
FixIndent can be used on code written in any language that uses curly braces (sorry, Python).
Installation: To install FixIndent, copy and paste it in your plugins directory. For most users, the plugins directory will be /Users/[YOUR USERNAME]/Library/Application Support/Coda/Plug-ins.