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

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