Reactor · 10 wallpapers, 2 free

Wallpapers that react to music

The Reactor collection is a set of shaders that listen to whatever is playing on your computer and move with it. Play a playlist, a video or a game and the background pulses in time: waves rise with the bass, the topography shifts with the vocals, the equalizer follows every beat.

Nothing is recorded. PrimoEngine only measures loudness and frequencies, and only while an audio-reactive wallpaper is on screen. Sensitivity goes from subtle to intense. On a Mac, the app asks for the System Audio Recording permission the first time.

Pulse and Origami Tunnel are free forever, so you can try it before paying for anything.

Download free See Premium

Folded paper tunnel of teal, coral, mustard and cream triangles receding to a point — Reactor · Origami Tunnel New Free Shader

Isometric grid of turquoise cubes floating on a dark purple background — Reactor · Primo Equalizer New Premium Shader

Swirling ink vortex of navy, teal, coral and cream around a dark center — Reactor · Ink Vortex New Premium Shader

Cobalt blue and black topographic relief with white contour lines — Reactor · Topography Cobalt New Premium Shader

Teal and lilac equalizer bars along the bottom of a dark screen — Reactor · Pulse New Free Shader

Dunes made of thousands of blue and purple dots on a dark background — Reactor · Point Dunes New Premium Shader

Ivory and sand topographic map with fine gray contour lines across soft hills — Reactor · Topography Ivory New Premium Shader

Green aurora curtains over dark mountains reflected in a still lake at night — Reactor · Aurora New Premium Shader

Terracotta and clay topographic map with pale cream contour lines — Reactor · Topography Clay New Premium Shader

Ice blue and navy topographic map with crisp white contour lines — Reactor · Topography Glacial New Premium Shader

Frequently asked questions

Does it work with Spotify, Apple Music and YouTube?

Yes. The wallpaper reacts to the sound coming out of your computer, whichever app is playing it.

Does PrimoEngine record what I listen to?

No. It only measures loudness and frequencies, and only while an audio-reactive wallpaper is on screen. Nothing is recorded or sent anywhere.

Is there a free music-reactive wallpaper?

Yes: Reactor · Pulse and Reactor · Origami Tunnel are free forever, on Mac and on Windows.

Frequently asked questions

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