Synthesizer
Modular software synthesizer with oscillators, filter, ADSR faders, LFO, effects, MIDI, and keyboard.
How does this tool work?
A full-featured polyphonic software synthesizer in the browser, playable via mouse, computer keyboard, or external MIDI hardware.
Two independent oscillators produce raw waveforms (sawtooth, square, sine, triangle, PWM) and noise. The audio passes through a resonant multimode filter (VCF) and dual ADSR envelopes. An assignable LFO modulates cutoff, pitch, or amplitude, while an integrated effects rack (delay, reverb, chorus, distortion) and master limiter polish the sound. Play directly using the collapsible piano keyboard, computer keys, or any connected USB/Bluetooth MIDI controller.
Where are my data processed?
100% Client-Side: Your data never leaves your browser.
All calculations, conversions, encodings, and file processing of this tool are executed exclusively locally via JavaScript on your client device. No inputs, passwords, cryptographic keys, texts, or uploaded files are ever sent to our servers or third parties. Once the page is loaded, the tool remains completely functional even offline.