PackratA fast, portable, and useful sprite packer.

Pack source images into atlas pages and generate usable output formats.

Start with the GUI guide

Insanely Fast
Easily handle thousands of individual assets. Written in Zig and Dear ImGui for speed.
Insanely Portable
One executable file. That's it. Use it how you want, where you want, through the GUI or CLI.
Insanely Useful
Generate tons of different output formats. For more DIY engines, generate drop-in code directly.

Documentation

Packrat is a sprite atlas tool for packing source images into atlas pages.

GUI guide for projects, packing settings, previews, and exports.
CLI guide for automation, validation, conversion, and watch mode.
Export format guides for integrating generated atlases into a runtime.

Export formats

Trusted engine and tool formats:

Generic formats: