Nebula Lab Visualizer
Nebula Lab — an endless, breathing cosmos for your longest, quietest tracks
Some music isn’t meant to end. Sleep tracks, ambient pieces, the eight-hour drones you fall asleep to and wake up still inside — they deserve a visual that never breaks the spell. So I built one. Sleep Nebula turns a single ambient track into a slow, living cosmos: nebula clouds drifting and folding into themselves, aurora veils swaying across the frame, star fields glittering in every size, and, if you want one, a lit planet turning quietly in the distance.
The whole thing breathes. Everything moves on a slow, seamless cycle, so the image swells and settles like a sleeping chest and then loops back on itself with no visible seam — you can run it for one hour or eight and never catch the stitch. That was the hard part and the whole point: a picture that stays calm and unbroken for as long as your track plays.
You shape the look yourself. Pick a palette — Midnight Blue, Aurora Green, Amber Dream, Deep Violet — or pull the colours straight out of any image. Dial the nebula’s density and drift, the richness and warmth of the stars, the aurora, the planet. And when you want it to feel the music, tie the clouds, stars and glow to the bass, mids or treble through a built-in 6-band EQ — or leave it perfectly still for pure, unreacting sleep.
When it’s ready, export a short seamless loop to repeat forever, or render the whole track in HD with the visuals reacting the entire way and the audio baked right in. It runs as a desktop app on your own machine, so your music never leaves it and the exports come out full quality.
It’s part of a small family of visual tools I’m building under output.guru — each one made to give a piece of music something to look like. Sleep Nebula is the one for the quiet hours.

