MIDI Keyboard Web App

Click the button below to start the audio engine.

Modern browsers require user interaction before playing audio.

A browser-based MIDI keyboard with virtual piano and external MIDI device support

MIDI API: Checking...

Mobile Mode: Touch the keys to play. Swipe horizontally to see all keys.

Virtual Keyboard

Octave: 4

Instrument Type

Volume: -12 dB

Reverb: 0.3

Sustain: 0.5s

No MIDI devices connected. Click "Connect MIDI Device" above.

Click/Tap on the piano keys to play notes
On mobile: Touch and hold keys to sustain notes
Use your computer keyboard: Keys A-K for white keys, W-E-T-Y-U for black keys
Connect a physical MIDI keyboard using the "Connect MIDI Device" button
Change the instrument type, volume, and effects using the controls on the right
Adjust the octave using the + and - buttons below the keyboard