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fre:ac vs Free M4a to MP3 Converter: catalog facts
fre:ac	Free M4a to MP3 Converter
Free Free to use; the project accepts donations.	Free Freeware with no charge.
Windows, macOS, Linux	Windows
Wide range of input and output formats Converts whole libraries and keeps folder structure	Handles M4b audiobooks and other rarer MPEG-4 audio formats Converts whole folders including subfolders
Releases are infrequent Interface is functional rather than modern	Windows only Output limited to MP3 and WAV
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License: Freeware
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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