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Press vs SoundConverter: catalog facts
Press	SoundConverter
Free Free and open source under MIT.	Free Free and open source under the GPL-3.0 licence.
Linux	Linux
Processes a whole music library Offers preset and custom quality settings	Reads anything GStreamer supports Multithreaded batch conversion
Only a few formats are supported out of the box.	Linux and GNOME focused MP3 output depends on the GStreamer LAME plugin
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 1, 2026

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