TAS-X is a simple cross-platform free stereo tremolo and slicer plug-in with multiple waveforms and wave shaping. It's available for macOS and Windows in AU, VST, VST3 and stand-alone formats.
Visualize Modulation Options
Visualize the LFO options with 4 waveforms and extra limit and smoothing parameters.
Create stereo tremolo effects by offsetting the left and right LFOs.
Tempo sync the tremolo's LFOs with the DAW's tempo, fast or slow, from 1/2 to 1/64