SIGIL

Six synthesis engines, in a browser tab.

SIGIL running its FM engine: a live oscilloscope and frequency spectrum above the macro controls, the preset list and a playable keyboard.
Mid-note, on the FM engine. Nothing installed, nothing signed up for.
Play it now — free

Hear it first — FM, Hour Bell

Rendered straight out of the instrument. Every clip on this page is, and every one is a preset you can open and take apart.

Six engines, six demos

  • ANALOGBedrock

    Subtractive, with a four-pole ladder filter that self-oscillates.

  • FMTine Letter

    Four operators across the classic algorithms. Bells, electric pianos, metal.

  • PHYSICALGamelan Court

    Modelled resonators, struck or bowed. Wood, metal, glass and skin.

  • GRANULARVapor Column

    Audio cut into grains and rebuilt as clouds and drones.

  • WAVETABLEGlass Organ

    Scanning banks of waveforms, so the timbre moves as it sounds.

  • SAMPLER

    Your own recordings, through the same filters and envelopes.

    No demo — it plays whatever you load into it.

The effects tab: a chain of drive, crush, chorus, delay, reverb and output, with a second column of character effects.
Effects and character, on every engine.

In your DAW

The same six engines as a VST3 plugin: automatable from the timeline, saved with the project, rendered with the mix. Sounds designed in the browser open in the plugin unchanged.

$49one time · lifetime updates
Not on sale yet — $49 when it is

macOS, VST3, Apple Silicon. Windows and Audio Units are on the way. The browser version stays free and complete either way.