Simplify your reference.
Improve your painting.
Browser-based tools for painters. No sign-up, no uploads to a server — everything runs locally on your device.
Load a reference photo, adjust the settings, export what you need.
Block-In
GPU-accelerated painterly filter that simplifies any reference into color masses. Control stroke size, sharpness, and palette.
Simplification & MassesBokeh Blur
Simulate real lens blur to see only color masses and big shapes. Tilt-shift selective focus.
Simplification & FocusComposition
Rule of thirds, golden ratio, golden spiral, dynamic symmetry. Crop, notan, and focal heatmap.
Composition & LayoutNegative Space
See what you're not painting. Threshold silhouettes, click-to-fill, and contour outlines.
Shapes & EdgesColor Harmony
Extract dominant colors, identify harmonies, warm/cool bias, and oil paint mixing suggestions.
Color & PaletteValue Scale
Map every area to a numbered value scale. Hover to read values, simplify into steps, mixing strip.
Values & ToneProportion Grid
Set a unit, overlay a measurement grid, and compare distances. Essential for figure drawing.
MeasurementColor Temperature
Visualize warm and cool areas. Orange for warm, blue for cool. Plan temperature shifts.
TemperatureThumbnail Sketcher
Shrink your reference to see only big shapes. Adjustable resolution with optional notan reduction.
Planning100% Client-Side
Your images never leave your device
No Dependencies
No frameworks, no external libraries
Always Free
No watermarks, no feature gates
Made for Painters
Built around how artists actually work