The Ultimate Drawing Reference Tool for Artists
Whether you're a beginner learning proportions or a professional artist needing a quick sketch reference, this tool converts any photo into a powerful drawing guide instantly — no signup, no upload to any server.
Pencil Sketch & Contour Mode
Our edge-detection algorithm extracts clean outlines from your photo, making it easy to trace proportions and shapes. Choose from pencil, charcoal, ink, or cross-hatching styles.
Grid Overlay System
Artists have used the grid method for centuries to transfer proportions accurately. Our tool supports 3×3, 4×4, 6×6 grids, diagonal guides, and even golden ratio overlays.
Color Palette & Value Study
Extract the dominant colors from any reference photo as hex codes ready for your palette. Use the grayscale value study mode to understand light and shadow distribution before painting.
100% Offline & Secure
All processing happens inside your browser using the HTML5 Canvas API. Your images never leave your device — no server uploads, no data collection, fully private.