Many developers often face the tedious task of collecting difficult or complex code sequences in some sort of library or list. Most development environments already feature the one or other snippet function to allow for including this task into the workflow. This doesn’t work out though if you work with several programs or even do things via ssh in VI or Emacs on remote systems.
Enter Code Collector: An application focused on the sole task of collecting, keeping and sorting your snippets, functions or code sequences. It nicely integrates into OS X to help in collecting code from different applications as well as inserting it:

Code Collector Pro looks after all your code snippets, letting you quickly reference them whenever you want. With support for Smart Groups, Tagging, TextMate Bundles and much more Code Collector Pro is the best way to store, organise and share code snippets on the Mac

Find the App here