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FFmpeg Batch AV Converter vs fre:ac: catalog facts
FFmpeg Batch AV Converter	fre:ac
Free Free and open source.	Free Free to use; the project accepts donations.
Windows, Linux	Windows, macOS, Linux
Batch conversion with drag and drop Full access to FFmpeg parameters and presets	Wide range of input and output formats Converts whole libraries and keeps folder structure
Linux use requires Wine-Mono Knowing FFmpeg options helps to get the most from it	Releases are infrequent Interface is functional rather than modern
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
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 September 23, 2026

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