Atlased is a sprite sheet and atlas editor made to be used as a support tool for 2D games development, asset preparation pipeline, game jam sessions and etc.
It is capable of creating sprite atlases (both images and markup) and performing various editing and export operations.
In a nutshell Atlased is:
Atlas markup editor - you can create and change regions within existing image files.
Sprite packer - you can create new images from a set of separate sprites and get automatically created regions.
Sprite slicer - you can disassemble existing sprite sheets into separate pictures.
Main features
Sprite packing: glue separate sprites together in an efficient manner, producing PNG+JSON file pair for each packed "page" of images.
Auto-tracing: detect sprites within a sprite sheet automatically, creating JSON markup
Create and edit atlases by manually setting regions, grid, origin points and etc.
Resize, rename, move and grow operations
Copy and paste sprite's origin point from one region to another (in batches too!)
Configure application export paths, behavior and color parameters to your liking
Undo/redo for every main operation
Export from atlas to separate sprites (aka slicing)
Export to Tiled editor tilesets
Godot engine is supported via add-on.