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Retrobatch vs Resizer: catalog facts
Retrobatch	Resizer
Paid Paid app with a 7 day free trial.	Freemium Lite edition is free; a Pro licence is sold on the den4b site.
macOS	Windows
Visual node-based workflows with multiple inputs and outputs Metadata editing and stripping without recompressing images	Simple drag-and-drop batch workflow Fit, fill and crop, or stretch resize modes
macOS only Paid after the 7 day trial	Windows only Limited to BMP, GIF, PNG, JPEG and TIFF
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License: CC-BY-NC-ND-3.0
Not stated if an account is 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 October 2, 2026

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