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F2 vs ReNamer: catalog facts
F2	ReNamer
Free Free and open source under the MIT licence.	Free Free to download and use on Windows.
Command line	Windows
Dry run by default shows changes before applying them Undo for any rename operation	Ordered rule chains for precise, repeatable renaming Reads music, photo, video and document metadata into filenames
Command line only, with no graphical interface Regular expression renames take some learning	Windows only Not open source
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License: Freeware
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 2, 2026

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