GridMotion - Spritesheet Editor

~Metadata-Driven Spritesheet Editing~

GridMotion is a pixel-art focused spritesheet editor for building, editing, previewing, palette-tuning, and exporting animation sheets with matching JSON metadata.

It is made for small game sprites, animation sheets, pixel-art workflows, and quick frame-by-frame cleanup without needing a full art suite.

To celebrate the release of GridMotion,

it's time for a SALE!

Get GridMotion 50% OFF, Today!

Free Version Available!

The free version is the full GridMotion app, but NO layered drawing or applying palettes.

A non-intrusive freebie! No watermarks and No usage limits.

Perfect for: students, hobbyists, indie devs, game jams, or anyone that needs a basic, free spritesheet editor.

Look below for the demo download button.

If you like GridMotion and the demo helps you out, consider buying the full app.

Thanks either way!

Features:

• Load spritesheet images and JSON metadata.
• Create metadata from scratch when you only have an image.
• Preview animations with FPS, looping, zoom, backgrounds, overlays, and ghosting.
• Edit frames directly with Pencil, Line, Fill, Erase, Select, Wand, Move, and Stamp tools.
• Use brush shapes: Circle, Square, Diamond, and Outline Only mode.
• Work with per-frame layers, opacity, blend modes, clipping, alpha lock, visibility, and greyscale.
• Copy, paste, move, transform, and stamp selected pixels.
• Use ghosting to compare previous/next frames while animating.
• Preview and apply palette reduction with dithering options.
• Inspect, edit, isolate, and highlight generated palette colors.
• Rebuild sheet layouts and export updated spritesheets with matching JSON.
• Resize exported frames with pixel-perfect or smooth scaling options.
• Dark UI designed for pixel-art editing.

Good for:

• Cleaning up existing spritesheets.
• Making small frame edits without opening a large art program.
• Building JSON metadata for sheets that do not already have it.
• Reordering or rebuilding animation layouts.
• Reducing palettes for retro-style art.
• Checking animation timing and frame alignment.
• Creating stamps from selected pixels for repeated details.

Example uses:

• Load a character walk cycle, fix a few pixels, then save the updated PNG and JSON.
• Import a sheet with no metadata, define frame size and animation rows, then export metadata.
• Use ghosting to adjust an attack animation frame-by-frame.
• Generate a 16-color dithered version of a sprite for a retro game.
• Rebuild a messy sheet into a cleaner animation layout.

Palette generation options:

Dither options:

Output settings:

Import wizard:

Notes:

GridMotion is designed for spritesheet editing, not full illustration work. It works best with pixel art, small-to-medium spritesheets, animation cleanup, palette experiments, and game asset preparation.