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Airwindows vs MFreeFXBundle: catalog facts
Airwindows	MFreeFXBundle
Free Free and open source, with no DRM.	Freemium The effects are free to use; an optional paid upgrade unlocks additional interface…
Windows, macOS, Linux	Windows, macOS
Hundreds of free effects with frequent new releases AU and VST builds for macOS, Windows and Linux	Includes several sound-processing effects Shares a common plug-in interface
Minimal generic interfaces with few visual aids Installation notes vary from plugin to plugin	Some interface features require the optional paid upgrade.
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.