KeyBloom
The moment your playing blooms
Particles bloom from the key you press — file or live.
Particles bloom from the key you press
The instant you touch a key, light rises from that key. A native audio engine bypasses the browser, so it feels like playing — and your take renders straight to video.
Drop in a MIDI, get a video
88 keys press in time with the file and particles bloom from each one. Rendered frame by frame, so nothing drops on a slower machine.

Seven motions, five color modes
Shape (●■♥★), color, count, size, speed, height and glow — set once as a global rule for the whole piece. No note-by-note keyframing.
A different look per section
Build up to six cues and drop them on the timeline — the visuals change from that point on, while particles already in the air keep their old color.
MIDI · audio waveform · visual track — on one screen
Made with KeyBloom
Performance and demo videos from the official channel.
No watermark, alpha included
MIDI files in the browser, live playing in the app. PLUS opens the output. Windows only.
Get KeyBloom
The web and desktop app are free. PLUS is a one-time purchase — after checkout you receive a license key by email; paste it into the KeyBloom app to unlock.