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Szyszka vs Bulk Rename Utility: catalog facts
Szyszka	Bulk Rename Utility
Free Free and open source under the MIT licence.	Freemium Free for personal use at home. Use inside a business requires a commercial licence.
Windows, macOS, Linux	Windows
Multiple renaming rules that can be combined Fast with large numbers of files	Every rename rule, from regular expressions to EXIF and ID3 metadata, is visible on one screen with a…
Development is infrequent GTK interface feels out of place outside Linux	It is closed source, the dense interface is intimidating, and business use requires buying a commercial licence.
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 22, 2026

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