Compare software

Name Mangler vs F2: catalog facts
Name Mangler	F2
Paid 19 USD with a free trial; upgrades cost 9 USD, and it is also on the Mac App…	Free Free and open source under the MIT licence.
macOS	Command line
Preview of new filenames before renaming Fast on very large batches	Dry run by default shows changes before applying them Undo for any rename operation
Mac only Paid licence after the trial	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 October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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