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NameChanger vs Szyszka: catalog facts
NameChanger	Szyszka
Free Free download.	Free Free and open source under the MIT licence.
macOS	Windows, macOS, Linux
Live preview of new names as you type Regular expression and sequence renaming	Multiple renaming rules that can be combined Fast with large numbers of files
macOS only No metadata-based renaming mentioned	Development is infrequent GTK interface feels out of place outside Linux
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 October 1, 2026

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