The [wavetable-synthesizer] is a web synth [module] that creates sound using [wavetable] synthesis. It supports loading wavetables (custom wavetable support coming soon), interpolating between them via modulatable params, and outputting audio.
It is integrated into the [synth-designer] as well as being available as a [patch-network] node directly. The synth designer integration currently only supports monophonic sound output, but I plan to make this properly polyphonic soon.