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JPEGView vs nomacs: catalog facts
JPEGView	nomacs
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free and open source under the GPL 3.0.
Windows	Windows, macOS, Linux
Supports common image formats and many camera RAW files.	Opens RAW camera files and Photoshop PSD documents Synchronises pan and zoom between two windows or two machines
It focuses on viewing and adjustments rather than layered composition.	Not an editor; adjustments are minimal The interface exposes a lot of panels at once
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 21, 2026

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