1. Online Pianos:
- [Virtual Piano Online](https://virtualpiano.net/): This website provides a virtual piano that you can play directly in your browser.
- [The Virtual Piano](https://www.thevirtualpiano.com/): Another browser-based virtual piano with additional features like recording and sharing your performances.
- [Piano Online](https://www.piano-online.com/): A simple virtual piano with a clean interface.
2. Software Instruments:
- [Pianoteq Free](https://modartt.com/pianoteq/pianoteq-free): A free version of the popular Pianoteq software piano.
- [Dexed](https://asb2m10.github.io/dexed/): A free Yamaha DX7 synthesizer emulation with piano sounds.
- [Salamander Piano Free](https://github.com/SalamanderGrandPiano/Salamander-Grand-Piano-Virtual-Piano/releases): A free virtual piano with a realistic sound.
3. Mobile Apps:
- [Perfect Piano](https://www.perfectpianoapp.com/): Available on iOS and Android, this app provides a virtual piano with a variety of sounds and features.
- [Piano by Yokee](https://yokee.com/piano/): Another mobile app with a virtual piano and additional features like recording and sharing your performances.
These options offer various virtual piano experiences ranging from browser-based to downloadable software instruments and mobile apps.