Best Free Online Synthesizer -- Play over 128 instruments (Pianos, Drum Pads, Guitars, Organs, & more) and beats with your keyboard or touchscreen.

VirtualPiano.eu is the online synthesizer that allows you to play 128 musical instruments for free using your PC keyboard, the mouse or by connecting an external MIDI keyboard.

MIDI Piano is a free web virtual instrument that allows you to play a large range of musical instruments and sound effects through your browser using a MIDI keyboard connected to your …

Seamlessly connect an external MIDI controller and elevate your experience. Simply press the MIDI button below the piano to select your device, or consult our MIDI troubleshooting guide if …

Play, edit and convert MIDI in your browser with powerful WebMIDI tools. Generate MIDI, analyze files, and export clean results—fast and privacy‑friendly.

Create music with our free online MIDI synthesizer. Play piano, learn notes, create melodies, and export your compositions as MIDI files.

This virtual piano gives you a simple way to practice your piano/keyboard skills online. Just connect a MIDI controller and start playing right away.

Using a browser that supports the Web MIDI API, you can record the performance of a MIDI keyboard connected to your computer, or play sounds from a hardware synth.

Free online piano keyboard with visual staff notation to help you learn music. Play, practice, and record MIDI with TinySynth. Start learning for free!

PianoVisual lets you play and visualize your MIDI files in the browser. Choose themes, instruments, and watch notes light up in real time.