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FFmpeg vs FormatFactory: catalog facts
FFmpeg	FormatFactory
Free Free and open source. The codebase is mainly LGPL 2.1 with some components under the GPL…	Free Free to download from Flathub.
Windows, macOS, Linux, Command line	Linux
Handles practically every container and codec there is Remuxes without re-encoding, so a container change is instant and lossless	Batch queue with progress, ETA and output size estimates Device and site presets plus a custom profile builder
Command line only, with syntax that punishes guessing Argument order matters in ways that are not obvious	Linux only Flathub lists the license as proprietary despite open-source claims on the site
Downloadable app	Downloadable app
Open source	Closed source
License: LGPL-2.1	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 1, 2026

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