Browsersync - Browsersync makes your tweaking and testing faster by synchronising file changes and interactions...
Distill - Tracking website updates, automated and simplified
LiveReload - LiveReload 2 proudly presents… The Web Developer Wonderland. (a happy land where browsers don't need a Refresh button). CSS edits and image changes apply live. CoffeeScript, SASS, LESS and others just work.
AutoMask - In-browser AI imaging tool to anonymize people in pictures.
CodeKit - CodeKit allows you to optimize the performance of your website by automatically and efficiently compiling a variety of popular languages.
Fawkes - Image cloaking for personal privacy