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OpenPiano is a Windows desktop piano application that allows you to play, practice, and record music using your PC keyboard, mouse, or a MIDI device.
It supports real-time playback using SoundFonts and provides on-screen piano layouts for visual feedback while playing.
OpenPiano is designed to run entirely locally. It does not require accounts, cloud services, or an internet connection for core functionality.
Project links:
Website: https://www.justagwas.com/projects/openpiano
GitHub: https://github.com/Justagwas/openpiano
Documentation: https://github.com/Justagwas/openpiano/wiki
The application is fully open source. All input handling, playback, and MIDI recording/export are performed on the user's machine.
VirusTotal scan result:
https://www.virustotal.com/gui/file/8e038bb061d4778715006a9d4b0a6ed9b4f5b6565050d5808452316b42eae7d4
Features
- On-screen piano with 61-key and 88-key layouts
- Input via PC keyboard, mouse, or MIDI devices
- Real-time playback using SoundFonts (.sf2, .sf3)
- Bank and preset selection for compatible SoundFonts
- Visual key feedback while playing
- Real-time controls for volume, velocity, sustain, and transpose
- MIDI recording of live input
- Local execution without accounts or online services
- Configurable UI options (theme, scale, key labels)
Project Samples
