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ImageUSB vs Win32 Disk Imager: catalog facts
ImageUSB	Win32 Disk Imager
Free Free to download and use.	Free Free and open source.
Windows	Windows
Writes one image to many USB drives concurrently Bit-level copies that preserve slack space and the MBR	Writes and reads raw images on SD cards and USB drives Can back up a card or stick to an image file
Writing CD ISO images directly may not produce a bootable drive on every system Closed source	Windows only Reported issues with USB floppy drives and some other devices
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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