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