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USBImager vs ImageUSB: catalog facts
USBImager	ImageUSB
Free Free and open source under the MIT licence.	Free Free to download and use.
Windows, macOS, Linux	Windows
Writes compressed images without unpacking first Runs on Windows, Linux and macOS	Writes one image to many USB drives concurrently Bit-level copies that preserve slack space and the MBR
Deliberately minimal feature set Writing to the wrong drive erases it	Writing CD ISO images directly may not produce a bootable drive on every system Closed source
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
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.