Slicer - your friendly Sketch slicing helper

Presets woot!

Select a preset (or customize one) and your slices are named and sorted by folders neatly

Repeat!

Setup your slices once and hit ⌘ + E endlessly to export again using the same settings

9-patch the world!

Draw 4 black rectangles (i.e. patches) once and watch them exported into all Android sizes

Some 9-patch guidance

In order for the dark arts of 9-patch to work please follow these:

Draw 4 black colored patches and group them
Group your content (might be best to include an actual slice or a mask inside it to make sure its size is as you want it)
Group the 2 groups and name that group after your slice, ending with a ".9"