iobroker.wled
A fast and feature-rich implementation of an ESP8266/ESP32 webserver to control NeoPixel (WS2812B, WS2811, SK6812, APA102) LEDs!
node-pixel
Library for controlling addressable LEDs (such as NeoPixels) from firmata or Johnny Five.
node-pixel-async
Library for controlling addressable LEDs (such as NeoPixels) from firmata or Johnny Five.
ws2812draw
Draw to a ws2812 LED matrix with a Raspberry Pi