Bristle: Brush Engine Lab

A free, offline, multi-language Brush Engine Playground.

Bristle is a brush engine playground — a pocket studio where every stroke is yours to tune. Pick an engine, shape its dynamics, and paint with brushes that respond to your speed and stylus pressure in real time.

TWELVE BRUSH ENGINES
Ink Pen for crisp lines. Marker with a chisel edge. Airbrush for soft shading. Calligraphy with a real nib angle. Spray for graffiti texture. Pixel for retro art. Ribbon for smooth flowing strokes. Go PRO and unlock Neon glow, wet-edged Watercolor, gritty Charcoal, hue-cycling Rainbow, and the Confetti party brush.

A REAL DYNAMICS PANEL
This is not a fixed brush set — it is an engine you control. Adjust flow, stamp spacing, stroke smoothing (stabilizer), taper, size jitter, scatter and hue jitter, and the nib angle. Watch a live preview stroke repaint itself as you drag each slider, so you always know exactly what your brush will do before it touches the canvas.

PRESSURE THAT JUST WORKS
Drawing with a stylus? Bristle reads true pen pressure. Drawing with a finger? Stroke speed shapes the line instead, so strokes still taper and swell naturally.

SYMMETRY AND MANDALAS
Flip your strokes live across a vertical, horizontal, or four-way mirror. Upgrade to PRO for full Mandala mode: radial symmetry with 3 to 16 segments for effortless kaleidoscopic art.

PRESETS TO START FAST
One tap loads a complete tuned brush: Fine Liner, Bold Marker, Soft Shade, Script, Graffiti, 8-Bit, and PRO picks like Neon Sign, Aqua Wash, Charcoal, Prism, Party Pop and Glow Mist — each drawn live as a preview stroke so you can see it before you use it.

YOUR CANVAS, YOUR PAPER
Square and Portrait canvases; Landscape, Story, Banner and phone Wallpaper sizes. Choose any paper color, or export on transparent paper for stickers and overlays.

SAVE, EXPORT, SHARE
Keep works-in-progress in your Gallery and reopen them anytime. Export sharp PNGs straight to your device — PRO renders at 2x resolution for print-ready detail.

MADE TO BE BEAUTIFUL
A clean, spacious studio with settings tucked into elegant bottom sheets, an eraser and unlimited experimentation one tap away, and eight hand-tuned themes: Graphite, Porcelain, Sage and Indigo free, with Noir Gold, Ultraviolet, Rosé and Deep Sea. English and Spanish included.

Whether you are sketching, doodling mandalas, tagging graffiti letters, or just playing with what a brush can be — Bristle turns your phone into a brush laboratory. Download free and start painting.