You know those moments of realization where you discover something and feel like you've had your head in the sand for years?
That's been my morning.
Dash is an API Documentation Browser and Code Snippet Manager. Dash stores snippets of code and instantly searches offline documentation sets for 150+ APIs (for a full list, see below). You can even generate your own docsets or request docsets to be included.
If you dabble in web development at all, Dash is worth a download. Here are the docsets I grabbed without effort - all available for quick search.