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ReNamer vs KRename: catalog facts
ReNamer	KRename
Free Free to download and use on Windows.	Free Free and open source under the GPL-2.0 licence.
Windows	Linux
Ordered rule chains for precise, repeatable renaming Reads music, photo, video and document metadata into filenames	Regular expression support for advanced renaming Plugins read metadata from images, video and music
Windows only Not open source	Linux only Many options can take time to learn
Downloadable app	Downloadable app
Closed source	Open source
License: Freeware	License: GPL-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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