ArcadeOn Sprite FREE

ArcadeOn Sprite is a fast, focused desktop app for game developers and pixel artists who work with sprite sheets. Drop in a sheet to slice it into frames, or drop a folder of frames to pack them into a sheet — then hit Space to see the animation come to life in a live side-by-side preview.

No web upload. No subscription. No cloud. Your art never leaves your machine.

Built for Windows, ships as a single signed .exe, and launches in under a second.

Features

Slice a sheet into frames

• Grid by columns × rows, or by frame width × height
• Margin, spacing, and max-frame controls
• Auto-trim each frame to its non-transparent bounding box
• Automatically skip empty cells

Pack frames into a sheet

• Grid, horizontal strip, or vertical strip layouts
• Auto or manual column count
• Padding, margin, and five alignment modes
• Optional power-of-two sheet size for GPU textures
• Transparent, black, white, or magenta backgrounds

Live animation preview

• Side-by-side sheet + animation view
• 1–60 FPS, loop, and ping-pong modes
• Active frame highlighted on the sheet as it plays
• Space to play/pause

Export anywhere

• Individual PNG frames
• Animated GIF or WebP
• Repacked sprite sheet with JSON metadata
• Varied-size frames auto-normalised for clean animated output

Workflow niceties

• Drag-and-drop (file → Slice, folder → Pack)
• Natural filename sorting (frame_2 before frame_10)
• Keyboard shortcuts for everything
• Settings persist between sessions
• Clean dark UI that stays out of your way