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mpg123 vs kew: catalog facts
mpg123	kew
Free Free software under the LGPL 2.1.	Free Free and open source.
Windows, macOS, Linux, Command line	macOS, Linux, Command line
Lightweight console MP3 playback Runtime-selected assembly optimizations for x86, x86-64 and ARM	Runs entirely in the terminal Plays local files privately with no account
Command-line only, no graphical interface Focused on MPEG audio rather than every audio format	Terminal interface may not suit everyone Audio only
Downloadable app	Downloadable app
Open source	Open source
License: LGPL-2.1-only	License: GPL-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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