This is work-in-progress. The export option does work, but there's no default spritesheet. This is too being worked on. Latest update: I frankly have no willpower to work on this, and I'm also moving away from Minecraft to something more open-source. Maybe one day.

In 1.5 Minecraft's texture system moved from 256x256px atlases to individual 16x16px textures, but while that allowed for more precise and robust resource pack work, the drawbacks I noticed were losses in consistency of quality and palettes due to not knowing how different textures actually look side-by-side, and in productivity, having to work with large amounts of files.

This is a quality-of-life Java app made to help artists (and anyone, really) manage that.

For import option, it takes a bulk of individual textures and stitches them together in a texture atlas meant to be edited.
For export option, it takes the texture atlas plus name list and cuts it into individual textures titled accordingly to entries in that text file.

• Mojang - Original assets, of course
• 6LeoMC - All the code (thank you so much for this)
• temhotaokeaha - (not so) Original idea and other stuff