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SD Memory Card Formatter vs ImageUSB: catalog facts
SD Memory Card Formatter	ImageUSB
Free Free download from the SD Association.	Free Free to download and use.
Windows, macOS, Linux	Windows
Formats cards to the official SD File System Specification Supports SD, SDHC, SDXC and SDUC cards	Writes one image to many USB drives concurrently Bit-level copies that preserve slack space and the MBR
Only handles SD-family memory cards	Writing CD ISO images directly may not produce a bootable drive on every system Closed source
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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