Sketchbook Coloring Tool

The Sketchbook Coloring Tool is an interactive digital canvas application designed for users to color and customize artwork seamlessly. It provides a robust suite of tools including flood-fill, freehand brushing, and color sampling, bringing a native app-like experience directly to the web.

Built to handle complex pixel manipulations efficiently, this app ensures real-time boundary detection and smooth coloring mechanics without sacrificing performance.

The core of the application relies on a Custom 2D HTML5 Canvas Engine that processes pixel-level data dynamically. This engine uses advanced algorithms to provide accurate boundary detection and anti-aliasing for the flood-fill tool.

On the state management side, React Context is utilized to keep track of user sessions, sketch libraries, and active color palettes. A robust state history stack was built to support seamless step-by-step undo and redo operations.

• Interactive Canvas: Includes a flood-fill paint bucket with adjustable color tolerance, freehand brushes, eyedropper sampling, and smooth zooming and panning.
• Undo/Redo System: A high-performance state history stack that allows reverting and re-applying any painting stroke or bucket fill instantly.
• Custom Palette Builder: Choose from curated preset palettes or build and save custom colors with a built-in color picker.
• Export & Print: Export completed colored artwork as high-resolution PNG images or generate printable PDF documents for offline physical coloring using jsPDF.

• 🌐 Live: https://sketchbook-coloring-tool.vercel.app/

Feel free to give it a try and unleash your creativity!