How to quickly create a "Convert to data URI" context menu option on Mac

data-uri-context-menu-mac.md

Setup

1. Download https://gist.github.com/jsocol/1089733 and unpack
2. Rename data-uri.py to data-uri and copy to /usr/local/bin/
3. Open Terminal, cd /usr/local/bin/ and and then chmod +x data-uri (enter password when prompted)
4. Open Automator, choose New > Service.
5. Set up the service as follows:
   Service receives selected files or folders in Finder.app
   which is connected to a Run Shell Script action, with the following settings:
   Shell: /bin/bash
   Pass input: as arguments

  for f 
  do
    /usr/local/bin/data-uri "$f" | pbcopy
  done

And save as convert-to-datauri
See http://grab.by/nuCE for a visual overview.

How to use

Right click on any file and select the convert-to-datauri option in the Services submenu. The data URI is copied to the clipboard and is ready to be pasted.