Free Projection Mapping for Piano and MIDI

Yes. It is free, needs no account or download, and runs in your browser.

A projector or second screen, a computer running Chrome or Edge, and ideally a USB MIDI keyboard. Without one you can click the keys or let a song play.

Four corners are a perspective (corner-pin) warp done by the graphics card at no cost. Add points along an edge and it becomes a mesh warp, so each cell bends on its own to follow a curved or angled surface.

Yes, in this browser, until you reset it with R.

Every note you play on a MIDI keyboard lights its key and sends light up from it: crisp particles, flowing ink from a real-time fluid simulation, or both. Without a keyboard, click the keys or play one of the library songs.

Connect a projector as a second screen and open this page on it. Press P to go full screen with nothing but the image, then C to calibrate: drag the four corners onto the edges of your keyboard. Click an edge to add mesh points and bend the image round curves; K hides the drawn keys when a real piano stands in for them.

The warp is saved in the browser and stored relative to the screen, so it survives a reload and a change of resolution. R resets it, and F toggles full screen.

No. The free tools need no account and no download. They run in your browser, and nothing you play or drop in is uploaded.

Yes, in any current mobile browser. MIDI keyboards and pad controllers need Chrome, Edge or Opera, on a computer or an Android phone.

GrooveSheet turns any song into sheet music, MIDI and separated stems with AI: drums, bass, guitar, piano and more. Every song starts with a free 10-second preview.