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RnR vs brename: catalog facts
RnR	brename
Free Free and open source under the MIT licence.	Free Free and open source under the MIT licence.
Windows, macOS, Linux, Command line	Windows, Command line
Dry run by default with collision checks Undo through operation dump files	Regular expression matching and replacement Designed to avoid accidental overwrites
Only accepts UTF-8 valid input arguments Requires comfort with regular expressions	Requires familiarity with regular expressions No graphical interface
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
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.