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OpenPiano

Play piano with your PC keyboard, mouse, or MIDI device

Overview

OpenPiano is a Windows desktop piano instrument app you can play with keyboard, mouse, or MIDI controller while testing SoundFonts, practicing songs, and exporting MIDI takes.

  • 61-key and 88-key layouts with live key feedback
  • SoundFont support (.sf2 / .sf3) with bank and preset selection
  • Keyboard, mouse, and MIDI input support
  • Editable keybind mode with Save, Discard, and Ctrl+Z undo
  • MIDI recording and .mid export
  • Real-time controls for volume, velocity, sustain, and transpose
  • Theme, UI scale, animation speed, and key color customization
  • Built-in tutorial with an in-depth explanation of features
Download
Version 1.2.1 - February 27, 2026
Download (Official)

The installer includes everything you need to get started. It will guide you through installation and install the required components for OpenPiano.

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Preview

Real UI captures from OpenPiano.

Latest release and safety

Version 1.2.1 - February 27, 2026
  • Switched bundled defaults to DEFAULT.sf3 and GRAND PIANO.sf3.
  • Preset selector now shows SoundFont preset names.
  • Reduced package size.
  • Minor fixes.

Security and installation

OpenPiano is safe. Windows may still show a "Protected your PC" warning because the app is new or unsigned. Choose More info and then Run anyway if prompted.

The latest installer was scanned on VirusTotal with: 0/70 detections. View VirusTotal scan.

Manual installer and release details are available on the download page.

Open source and distribution

OpenPiano is open source and available on both GitHub and SourceForge.

Users love us on SourceForge