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Simple Audio Converter vs fre:ac: catalog facts
Simple Audio Converter	fre:ac
Free Free and open source under the MPL-2.0 licence.	Free Free to use; the project accepts donations.
Android	Windows, macOS, Linux
Straightforward interface for quick conversions Uses ffmpeg for conversion	Wide range of input and output formats Converts whole libraries and keeps folder structure
Few advanced conversion options by design Android only	Releases are infrequent Interface is functional rather than modern
Downloadable app	Downloadable app
Open source	Open source
License: MPL-2.0	License not stated
Not stated if an account is needed	No account needed
Not stated if it 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.