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x42 plugins vs LSP Plugins: catalog facts
x42 plugins	LSP Plugins
Free Described as an open-source plugin collection; check the site for packaged builds.	Free Free and open source under LGPL-3.0, supported by donations.
Linux	Linux
Standards-based level meters (IEC, EBU) Zero-latency equalizer with spectrum analyzer	Supports CLAP, LADSPA, LV2, VST2 and VST3 Standalone JACK versions with a UI
Requires an LV2 host or a JACK setup Site gives little release or platform detail	Built primarily for GNU/Linux Small core team
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: LGPL-3.0
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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