Pixel Palette - Runtime Pixel Art Editor

Pixel Palette is a fully-featured runtime pixel art editor built entirely in Unity. Drop the prefab into any scene and your users instantly get a professional drawing toolset — no external tools, no complicated setup, no third-party dependencies.

Documentation: https://viridian-games.gitbook.io/pixel-palette

What's included:

• Drawing tools — Pen, Eraser, Fill, Color Picker, and Selection with adjustable brush size (1–16 pixels)
• Layer system — Add, delete, duplicate, reorder, and merge layers. Each layer has its own visibility toggle and opacity slider
• Animation — Frame-by-frame timeline with onion skinning, add/delete/duplicate/reorder frames, and real-time playback at any FPS
• Color picker — Full uGUI color picker with a color wheel, RGB sliders, grayscale strip, hex input, and an eyedropper tool that samples any pixel on the canvas
• Quick shapes — Hold still to auto-detect lines, ellipses, and rectangles. Toggle between shape types and hold Shift for perfect aspect ratio
• Selection — Rectangular and elliptical marquee selections with cut-and-paste move functionality and marching ants overlay
• Pan and Zoom — Right-click or middle-click to pan, scroll-wheel to zoom, two-finger touch gestures for mobile
• Undo and Redo — Per-stroke undo tracking that only re-renders the area that changed
• Export — PNG export at any scale (1x to 8x), individual layer PNGs, horizontal spritesheets from animation frames, and full project save/load in a custom binary format (.pxl)
• Multiple input support — Works with touch, mouse, and pen/stylus. Pen pressure sensitivity included
• Cross-platform — Runs on desktop, tablet, and mobile out of the box

Built for developers:

Every button, panel, and tool is customizable. Wire up your own UI, lock features behind a demo mode, or trigger tools through clean C# APIs and events. The entire source code is included and well-organized — extend it with custom brushes, new export formats, or your own UI panels.

Perfect for:

• Games that need an in-game drawing or painting feature
• Educational apps teaching pixel art or animation
• Creative tools where users need to create and edit sprites
• Any app that wants to offer art creation without leaving the application

No external dependencies, no web service calls, no subscription fees. Everything runs locally in your Unity project.