S Pulser

S Pulser is a free tremolo effect plugin that rhythmically changes volume to create pulsing or pumping movement in your tracks. It’s ideal for synth pads, basslines, and any element that needs extra energy and groove. The plugin offers ten tempo-synced rates from 1/1 to 1/32, adjustable effect depth, and a length control that shapes how long the volume ducks before returning. A standout feature is mid-side processing: a slider lets you apply the effect only to mid or side frequencies, or blend them, opening up unique stereo movements and depth. You also get an offset control to preserve transients, output volume, over 20 presets from industry professionals, undo/redo, and a built-in on/off switch for click-free automation. The scalable GUI (80–150%) suits any screen. It’s aimed at producers, sound designers, musicians, and DJs who want quick, rhythmic motion with minimal setup.