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Metadata Cleaner vs MAT2: catalog facts
Metadata Cleaner	MAT2
Free Free and open source under the GPL 3.	Free Free and open source under the LGPL.
Linux	macOS, Linux, Command line
Shows metadata before removing it Simple graphical interface	Wide format coverage from one tool, usable as a library or CLI Included by default in Tails, so it is well exercised
Linux only Supported file formats are not listed in the available sources	Some formats can only be cleaned by re-encoding, which loses quality Command-line first; graphical use depends on file manager extensions
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: LGPL-3.0
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 22, 2026

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