This is a prototype. Things will break, change, or disappear. Have fun exploring.

FantasynthReal-time 3D
Visual Instrument

Mix 3D visuals in sync with your music.
Runs in your desktop browser, GPU-accelerated.
Play from your phone, tablet, or MIDI controller.

Launch FantasynthLaunch on desktopopen_in_new Read the docs → Join Discord open_in_new

Designed for live visual performance.
Trigger clips, launch scenes, fade the mix.

interestsGet ready

Prepare the visuals for your set. Upload your own music, or sync to a track playing elsewhere.

devicesConnect

Scan the QR code from your phone. Plug in a MIDI controller. Mouse and keyboard work too.

celebrationPlay

Launch scenes to the beat. Shape the mix as the track moves. Play live or record your session.

tuneControl

Scan the QR code from your phone or tablet. Connects over WiFi. No app to install. The Operator remote gives you 16 scene launchers, 8 clip shortcuts, and a shared fader.

Multiple people can connect to the same session. One computer runs the visuals, everyone else plays along.

Learn about remotes →
The Fantasynth operator interface running on a phone, showing scene launchers, clip shortcuts, and the music waveform display.
The Fantasynth interface, showing clip grids, scene launchers, and the 3D visual output.

local_fire_departmentFeatures

On the beat

Tap clips live. They drop into the mix.

Loop phrases

Record a sequence of launches. Replay it in sync.

Record sessions

Capture a take. Play it back, beat for beat.

Custom shaders

Paste ShaderToy, drop a .glsl, or ask an AI. Textures too.

HDR effects

Fog, bloom, color grade, exposure, tone mapping. Shape the whole look.

Your own music

Upload a track, or sync to what's already playing.

Ready to play.

Launch Fantasynth Launch on desktop open_in_new