Fruuit Coctaiil

A harmonograph is a machine made of swinging pendulums and a pen. Set the pendulums going, and the pen traces a figure no one drew by hand. Fruuit Coctaiil is that machine, with the pendulums under your fingers.

TUNE THE PENDULUMS
Four of them — two for each axis — and four controls each: amplitude, frequency, phase and damping. Nudge a frequency and the whole figure reorganises itself; add a touch of damping and the curve spirals inward instead of closing. Small numbers 🔢, large consequences. The relationship between the frequencies is what decides whether you get a clean 🧼 rosette or a dense knot, and you can feel that relationship by moving one slider at a time ⏱️.

WATCH IT DRAW 👀
The figure builds live as the pendulums swing, so you see 👀 the pattern 🔢 emerge rather than appear finished. Stop it early for a sparse sketch, let it run for a woven mass of line.

MAKE IT LOOK RIGHT
Palettes that run the colour along the line as it draws — aurora, ember, lagoon, gilded and more — with a background that suits them: nebula, starfield or plain deep. Then the line itself: thickness, glow and opacity, each on its own slider. The same pendulum settings give a hairline etching or a soft neon coil depending on how you finish it.

KEEP WHAT YOU LIKE
Save 💾 a figure with the settings that produced it, so a curve you stumbled into can be reproduced and adjusted later rather than lost. Export 📤 the image 🖼️ when you want it outside the app 📱.

No account, no connection, nothing sent anywhere — Fruuit Coctaiil keeps the pendulums swinging entirely on your own device 📱. Explore patterns, experiment with settings, and create your own flowing designs with Fruuit Coctaiil.