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Pack sprites into one PNG with a JSON atlas — ready for Unity, Godot or any engine.
Pack any generated or hand-drawn sprite into a sprite sheet — a single PNG containing multiple frames, plus a JSON atlas describing where each one sits. Set how many seeded variations to include and how many columns wide, then export straight into your game engine's asset folder.
Sheets are built from seeded sprites: the same seed always reproduces the same variation, so you can regenerate or share the exact set later.
Need a single sprite first? Start with the Sprite Maker. Prefer to draw by hand? Try the Pixel Art Editor. Or open the full editor.
A single PNG file packing multiple sprite frames together, usually with a data file (atlas) describing each frame's position — engines load one image instead of hundreds of small files.
Generate or draw a sprite, open Sprite sheet + atlas, set the count and columns, and export — you get a PNG sheet plus a JSON atlas.
Each frame's x/y position, width and height within the sheet, so an engine can slice it automatically.
Yes, completely free. No account, no login, no software to install.