Inline image parses css and html files to replace small file by a data URI reprentation in base64. Small files are files shorter than 1024 bytes by default. File type must be either css or html. Extension is used to determine file type, so it is important that your file end with .css or .html If file extension does not match either html or css, html will be used.
gem install inline_image
Brief usage description
inline_image help inline
Replace all image in a css file appearing in url(img/name.png) (max size 1024B)
inline_image inline /path/to/your.css
Replace all image in an html file appearing in url(img/name.png) (max size 1024B)
inline_image inline /path/to/your.html
Replace all image in a file with max size 2048B
inline_image inline /path/to/your_file --size=2048
inline_image inline /path/to/your_file -s 2048
Released under The Unlicense, aka public domain. See the LICENSE file for further details.