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opus-tools vs LameXP: catalog facts
opus-tools	LameXP
Free Free and open source.	Free Free and open source under the GNU GPL.
Windows, Command line	Windows
Encode, inspect and decode Opus in one toolset Easy to script for batch conversion	Encodes to MP3, AAC, Ogg Vorbis, Opus and FLAC Multi-threaded batch processing
Command-line only, with no graphical interface Handles Opus files only	Linux only through Wine Some antivirus programs falsely flag the downloads
Downloadable app	Downloadable app
Open source	Open source
License: BSD-2-Clause AND GPL-2.0-only	License: GPL-2.0-or-later
No account 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 2, 2026

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