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PicView vs Microsoft Photos: catalog facts
PicView	Microsoft Photos
Free The software is free under its open-source licence. Hosting, hardware and external…	Free Free and included with Windows.
Windows, macOS	Windows
It opens almost every image format including animated WebP and GIF, SVG, AVIF, HEIC, PSD and comic book…	Preinstalled and updated through the Microsoft Store Combines local photos and OneDrive in one gallery
It is a viewer with light editing only, and there is no Linux build.	Windows only iCloud Photos integration requires Windows 11
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
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 October 2, 2026

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