Zero Sweep Filter

A high-pass and low-pass filter that leaves the signal unchanged at zero, without clicks or wet/dry artefacts.

Software EffectFilter

Free

Download without an account. There’s nothing to unlock, and the plugin works offline. It’s yours to keep.

Zero Sweep Filter interface

Covered by

Sweep the filter, Not the bypass

The sweep is the easy part. Getting the filter completely out again is where the workaround starts. With Zero Sweep, the signal moves smoothly from fully transparent to filtered, then back to clean.

Zero stays clean

No residual filtering at the resting position. Put it on a channel, bus or master without keeping a bypass lane beside it.

One automation lane

Draw the sweep itself. No separate bypass and wet/dry moves to keep in sync.

Made for transitions

Builds, breaks and DJ-style cuts without the usual bypass clicks or phasey wet/dry crossfades.

Specifications

Filters
High pass and low pass, 12 or 24 dB per filter, 20 Hz to 20 kHz.
Controls
One amount knob per filter, with per-filter resonance. Limit caps how far an amount knob can travel and displays the target cutoff.
Curve
Sets the amount knob response, from linear at 0 per cent to the eased shape at the 50 per cent default.
At zero
With both amounts at zero the input sample is returned directly, once any active fade has settled.
Formats
VST3 and AU on macOS, VST3 on Windows.
Documentation
Read the manual

Changelog

  1. 1.0.017 Aug 2026

    • A new footer at the bottom of the plugin adds bypass, undo and redo.
    • Knobs show their value while you drag them.

  2. 0.1.018 Jul 2026

    • First release.

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FAQ

Does Zero Sweep add latency?
No. Zero Sweep runs in realtime with zero latency. Safe for tracking and live use.
Can I leave it on the master bus?
Yes. When the filter is at zero, Zero Sweep passes the signal bit-identical. No coloring, no phase shift, nothing. CPU usage is negligible, so you can keep instances across your template without worrying about overhead.
How is this different from automating a regular EQ or filter?
A standard high-pass or low-pass filter still sits in the signal path even at its lowest or highest setting. It stays present, colors the sound and shifts phase. Zero Sweep removes itself from the signal at zero. Sweep it in, sweep it back, and the plugin is genuinely not there.
Which formats and platforms are supported?
VST3 and AU on macOS and Windows. Works in any DAW that supports these formats.