After spending some time creating the atlas for my own game, I improved Atlas Manager to streamline sprite creation (and fixed a terrible bug). More updated are likely, as I don’t like using the mouse to click buttons all the time i.e. hotkeys.

Change log:

• BUG FIX: atlas now saves origin properly (previously saved as “output” instead of “orig”)
• Default grid size changed to 16
• New sprites are initialized to the right of the currently selected sprite
• New sprite creation prompts for a sprite name

Download here.