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F2 vs KRename: catalog facts
F2	KRename
Free Free and open source under the MIT licence.	Free Free and open source under the GPL-2.0 licence.
Command line	Linux
Dry run by default shows changes before applying them Undo for any rename operation	Regular expression support for advanced renaming Plugins read metadata from images, video and music
Command line only, with no graphical interface Regular expression renames take some learning	Linux only Many options can take time to learn
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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