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fre:ac vs Grim Ripper: catalog facts
fre:ac	Grim Ripper
Free Free to use; the project accepts donations.	Free Free and open source under the GPL-2.0 licence.
Windows, macOS, Linux	Linux
Wide range of input and output formats Converts whole libraries and keeps folder structure	Rips audio CDs to MP3 Supports other output formats as well
Releases are infrequent Interface is functional rather than modern	Linux only Little documentation on the project website
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-2.0-only
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 1, 2026

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