Synthio
Synthio.io - Open. Play. Create.
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Ian Pennini

Synthio - Synthio.io - Open. Play. Create.

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Synthio is a free online synthesizer piano you can play in your browser. Features ADSR envelope, filter, reverb, detune, and MIDI controller support. You can record sound and/or video to send to your team and friends.

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Ian Pennini
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Hey Product Hunt! 👋 I built synthio.io because I kept seeing musicians held back by one thing: cost. A decent hardware synth or DAW setup can run hundreds of dollars before you've played a single note. Synthio is my answer to that — a full piano synthesizer that runs entirely in your browser. No downloads, no installs, no gear required. Just open it and play. Whether you're a bedroom producer, a pianist without a keyboard, or just someone who wants to noodle around, this is for you. Would love to hear what you think, and what features you'd want to see next. Ask me anything!