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fre:ac vs To Audio Converter: catalog facts
fre:ac	To Audio Converter
Free Free to use; the project accepts donations.	Freemium Offered as a free download; the homepage does not give details of any paid upgrade.
Windows, macOS, Linux	macOS
Wide range of input and output formats Converts whole libraries and keeps folder structure	Batch conversion that keeps folder structure, file names and tags Accepts over 200 audio and video input formats
Releases are infrequent Interface is functional rather than modern	macOS only Closed source, and pricing details are not stated on the homepage
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it 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.