Cumpressor by WXAudio Plugins: Free Compressor Plugin

If you thought compressor plugins were getting a little too serious, WXAudio Plugins has something completely different for you. Meet Cumpressor, a free compressor plugin originally created for a silly social media video that somehow turned into an actual downloadable audio plugin.

Yes, it really exists. And yes, you can actually put it on your tracks.

Cumpressor is currently available as version 1.1.0 and can be downloaded for Mac and Windows directly from WXAudio Plugins.

What Is Cumpressor?

Cumpressor is a free compressor plugin from WXAudio Plugins, the developer behind plugins such as WebSampler, Strata, and NANI.

According to WXAudio, Cumpressor was originally made for a humorous social media video. Instead of leaving it as a joke, the developer turned the idea into a real plugin that producers can download and use.

The developer even jokingly describes it as “The Worst Plugin of All Time.”

Underneath the intentionally ridiculous presentation, however, Cumpressor is still a compressor plugin. That makes it an interesting free download for producers who enjoy collecting unusual VST plugins, experimenting with unconventional tools, or simply want something entertaining inside their DAW.

Cumpressor Features

Cumpressor isn't trying to compete with mastering compressors or complex dynamics processors packed with dozens of parameters. Its appeal is its combination of compression, unconventional presentation, and the fact that it's completely free.

Some of the main highlights include:

Free compressor plugin
Available for Mac and Windows
VST3 support
AU support on macOS
Intel Mac support added in version 1.1.0
Designed as a fun and unusual alternative to traditional compressor plugins
Can be used inside compatible DAWs

WXAudio has also continued working on compatibility issues rather than treating Cumpressor as a one-off joke. Version 1.1.0 fixed an issue that prevented the plugin from opening correctly in AU format and added Intel Mac support.

A Compressor Plugin That Doesn't Take Itself Seriously

Most compressor plugins are marketed with familiar terms like analog warmth, vintage character, transparent dynamics, and legendary hardware emulation.

Cumpressor goes in almost the exact opposite direction.

Its identity is deliberately ridiculous, and that's arguably what makes it interesting.

There are already plenty of excellent free compressor VST plugins available, ranging from transparent mastering processors to analog-style compressors. The freeware compressor market in 2026 is particularly strong, with numerous options covering VCA, optical, FET, multiband, and other compression styles.

Cumpressor doesn't necessarily need to replace those tools. Instead, it gives producers another experimental option to throw into their plugin folder.

Sometimes music production doesn't need to be so serious.

Using Cumpressor in Your DAW

Once installed, Cumpressor can be loaded like another compatible dynamics plugin.

You can experiment with it on:

Drums

Try Cumpressor on individual drum tracks or loops and experiment with stronger compression settings. Compressors can be particularly useful for changing the relationship between the transient and body of drums.

Vocals

Compression is commonly used to control vocal dynamics and help vocals maintain a more consistent position within a mix.

Try moderate settings first and compare the processed signal against the original.

Bass

Bass performances can contain significant level variations between notes. Compression can help reduce these differences and create a more controlled bass track.

Synths

Synth patches can also benefit from compression, particularly when you're trying to alter their envelope, control peaks, or create a more aggressive sound.

Experimental Processing

This is probably where Cumpressor makes the most sense.

Instead of approaching it like a precision mastering processor, throw it onto loops, samples, drums, vocals, or sound effects and see what happens.

Cumpressor on Mac

Cumpressor v1.1.0 includes support for Intel Macs, which was missing from the initial release. WXAudio also fixed a bug involving the AU version of the plugin.

There are, however, some compatibility details Mac users should know.

Logic Pro

WXAudio says Logic Pro receives special handling to make Cumpressor work correctly.

Because of the plugin's unusual window design, Logic may create a small empty plugin window alongside the main Cumpressor interface.

According to the developer, this extra window can simply be closed.

FL Studio on Mac

This is particularly important for FL Studio users.

WXAudio lists a known issue where the AU version of Cumpressor does not work correctly in FL Studio on macOS.

The developer therefore recommends using the VST3 version in DAWs other than Logic Pro, as VST3 handles Cumpressor's unusual window design better.

So, if you're running FL Studio on a Mac, installing/loading the VST3 version is the safer choice.

Is Cumpressor Really Free?

Yes.

WXAudio explicitly describes Cumpressor as a free compressor plugin.

That makes it easy to recommend as an experimental download. You don't have to decide whether its unusual concept is worth paying for—you can simply install it and see whether you find a use for it.

Cumpressor System Compatibility

Based on the current information from WXAudio, the basic compatibility looks like this:

PlatformAvailabilityWindowsYesmacOSYesIntel MacYes, added in v1.1.0VST3YesAUYesLogic ProSupported with a minor window quirkFL Studio Mac AUKnown compatibility issueFL Studio Mac VST3Recommended over AU

Compatibility can change with future updates, so it's worth checking the developer's page before installing.

Cumpressor by WXAudio Plugins: Free Compressor Plugin