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GabTag vs puddletag: catalog facts
GabTag	puddletag
Free Free and open source under the GPL-3.0-or-later license.	Free Free and open source.
Linux	Linux
Edits tags across multiple files Can fetch tag information from MusicBrainz	Spreadsheet view shows all tags for many files at once Tag-from-filename and rename-from-tag patterns
The README lists MP3 files as handled.	Built primarily for Linux Lacks some features found in Mp3tag
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked September 24, 2026

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