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NameChanger vs F2: catalog facts
NameChanger	F2
Free Free download.	Free Free and open source under the MIT licence.
macOS	Command line
Live preview of new names as you type Regular expression and sequence renaming	Dry run by default shows changes before applying them Undo for any rename operation
macOS only No metadata-based renaming mentioned	Command line only, with no graphical interface Regular expression renames take some learning
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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