Synthio
synthio.ioFree online synthesizer you can play in your browser
Creative Toolssynthesizermusicweb-audiomidipianobrowser-basedmusic-production
About
Synthio is a browser-based synthesizer piano that requires no downloads or plugins, using the Web Audio API to generate sound in real time. It supports keyboard, mouse, touchscreen, and MIDI controller input, along with controls for ADSR envelope, filters, reverb, and pitch bend. A free tier is available alongside a Pro upgrade that unlocks additional waveforms, sampled instruments, preset saving, and audio/video recording.
Problem
Musicians and learners lack a capable, no-install synthesizer they can play instantly in any browser
For
Musicians, hobbyists, and music learners who want a quick, accessible online instrument
How it works
Users open the website and play a piano keyboard using their keyboard, mouse, touchscreen, or MIDI controller, with the Web Audio API generating and processing sound in real time
Business model
freemium
Status
launched