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Szyszka vs Transnomino: catalog facts
Szyszka	Transnomino
Free Free and open source under the MIT licence.	Free Free to use, with optional donations.
Windows, macOS, Linux	macOS
Multiple renaming rules that can be combined Fast with large numbers of files	Regular expressions and wildcard find and replace Chain several actions with a live preview
Development is infrequent GTK interface feels out of place outside Linux	macOS only Current version requires macOS 14 or later
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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