Design LED animations in your browser.

Lay out your LEDs, animate them on a timeline, and export a ready-to-run program for your microcontroller — no firmware coding required. Then tune it live from your phone or Mac.

Open the web designer iOS & macOS apps — coming soon Runs entirely in your browser. Nothing to install, no account.

Visual editor

Place LEDs to match your build, then paint animations across them on a timeline.

One-drag flashing

Export a single .uf2 and drop it onto a blank Raspberry Pi Pico W — MicroPython firmware, your pattern, and settings, all in one image.

Live control

Companion iOS and macOS apps connect over Bluetooth or Wi-Fi to change brightness, speed, colors, and patterns on the fly.

Yours, privately

Projects stay in your browser. No accounts, no tracking, nothing uploaded.