9-Patch Generator (Nine Patch, Nine-Patch, 9 patch)

1) Online
  https://romannurik.github.io/AndroidAssetStudio/nine-patches.html
Select Image - btn at top-right

2) https://androidstudio.io/downloads/tools/download-the-latest-version-of-draw9patch.jar.html

start (just dbl-click) the jar in Win