ChowMultiTool

Name: ChowMultiTool
Author: Chowdhury DSP

by Chowdhury DSP · Multi-FX · EQ, filter and waveshaper toolkit

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ChowMultiTool is a "Swiss Army Knife" plugin that bundles several small mixing and sound design tools in one interface.

Its tools include a linear-phase-capable EQ, an analog-style EQ, a waveshaper, a band-splitter, brickwall and state variable filters, and a signal generator, all free.

Best for: Mix Bus, Keys & Synths, Drums, Sound Design. Genres: all genres.

Keywords: multi-band, free, linear-phase, sound design, mixing, open source, bus processing, CLAP, creative, drums, full mix, hardware emulation, mix bus, oversampling, vintage.

What it does

ChowMultiTool is Chowdhury DSP's free "Swiss Army Knife" plugin: one plugin holding a set of everyday tools, so you load it once and pick the processor you need.

EQ: an eight-band parametric EQ with a linear phase option and a drawable mode. You drag control points for frequency and gain and pick filter shapes from a menu, and the developer says the response stays natural close to Nyquist.
Analog-style EQ: a separate EQ modelled on vintage hardware.
Waveshaper: eleven waveshaping modes with built-in oversampling and low aliasing. Math mode lets you type an equation to define your own curve.
Band-Splitter: splits the signal into frequency bands with multiple outputs and perfect reconstruction, so you can process each band with other plugins.
Filters: brickwall filters, plus state variable filters with keytracking and parameter modulation (modulation in the CLAP version only).
Signal Generator: generates tones for testing and synthesis.

Version 1.1.0 is free and open source (GPLv3). Downloads come from GitHub.

Source: Chowdhury DSP product page

When to use it

ChowMultiTool is the pick when you want several basic tools in one free plugin rather than a chain of separate ones. Compared with Kilohearts' Multipass, it offers fixed tools instead of a modular rack of effects, but its Band-Splitter outputs let you build multiband chains with any plugin. Its EQ handles quick linear phase fixes but has none of the dynamic EQ, mid/side or analyser depth of Pro-Q 4. Its waveshaper is more flexible than most free options thanks to the equation mode, though Saturn 2 is far deeper for multiband saturation.

Best for: quick EQ and filtering, band splitting for multiband processing, custom waveshaping and test tones, all in one free plugin.
Genres: general purpose; the waveshaper and filters suit electronic sound design.
Look elsewhere if: you need dynamic EQ, mid/side work or detailed analysis (Pro-Q 4), or a full multi-effect with modulation (Multipass).
Tip: use the Band-Splitter outputs to turn a single-band plugin into a multiband processor.

Where to buy

Chowdhury DSP: Free

Tutorials and reviews

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