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JamesDSP vs FxSound: catalog facts
JamesDSP	FxSound
Free Free and open source under the GPL-3.0.	Free Free and open source. Hosting, hardware and any external services are separate.
Linux	Windows
System-wide effects for PipeWire and PulseAudio Scripting and API support	Includes sound presets and equalizer controls Offers system audio enhancement settings
Linux only PulseAudio setup needs separate installation steps	Audio effects can change the original sound and depend on the playback setup.
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: AGPL-3.0
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 1, 2026	Official website Full listing and sources Checked September 22, 2026

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