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Win32 Disk Imager vs Impression: catalog facts
Win32 Disk Imager	Impression
Free Free and open source.	Free Free and open source under the GPLv3.
Windows	Linux
Writes and reads raw images on SD cards and USB drives Can back up a card or stick to an image file	Minimal interface focused on one task Fits in with the GNOME desktop
Windows only Reported issues with USB floppy drives and some other devices	Linux only Fewer options than full-featured image writers
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: GPL-3.0
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.