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 is app-only — Windows.
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. One license covers up to two devices.
Launch sale — 30% off with codeKEYBLOOM· click "Add discount code" at checkout and enter it.
The app button opens the GitHub releases page — download setup.exe and run it. If Windows SmartScreen shows an "unknown publisher" warning, click More info → Run anyway. It is a standard warning for indie apps that are not code-signed yet.