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?
Only in your browser. Your data is not sent to any server.
The tool calculates and converts with JavaScript right on your device. Input and files are not sent to us or anyone else. You can check this yourself: load the page, disconnect from the internet, and the tool keeps working in the open tab.