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FFmpeg vs FrameExtractor: catalog facts
FFmpeg	FrameExtractor
Free Free and open source. The codebase is mainly LGPL 2.1 with some components under the GPL…	Free Free and open source under the GPL-3.0-or-later.
Windows, macOS, Linux, Command line	Windows, Linux
Handles practically every container and codec there is Remuxes without re-encoding, so a container change is instant and lossless	Graphical front end to ffmpeg frame extraction Extracts frames directly from YouTube URLs
Command line only, with syntax that punishes guessing Argument order matters in ways that are not obvious	Small, young project Single-purpose tool
Downloadable app	Downloadable app
Open source	Open source
License: LGPL-2.1	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Not stated if it 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.