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LameXP vs fre:ac: catalog facts
LameXP	fre:ac
Free Free and open source under the GNU GPL.	Free Free to use; the project accepts donations.
Windows	Windows, macOS, Linux
Encodes to MP3, AAC, Ogg Vorbis, Opus and FLAC Multi-threaded batch processing	Wide range of input and output formats Converts whole libraries and keeps folder structure
Linux only through Wine Some antivirus programs falsely flag the downloads	Releases are infrequent Interface is functional rather than modern
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License not stated
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 September 23, 2026

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