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

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