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ISO Image Writer vs Impression: catalog facts
ISO Image Writer	Impression
Free Free and open source under the GPL 3.0.	Free Free and open source under the GPLv3.
Linux	Linux
Single-purpose tool for writing ISO images to USB Graphical alternative to dd	Minimal interface focused on one task Fits in with the GNOME desktop
Fewer options than full-featured USB writers Linux build on Flathub only, according to the research	Linux only Fewer options than full-featured image writers
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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