Ruben2776 / PicView

Fast, free and customizable picture viewer

nomacs / nomacs

nomacs is a free image viewer for windows, linux, and mac systems.

d2phap / ImageGlass

🏞 A fast, open-source, modern image viewer for 90+ formats – including WEBP, GIF, SVG, AVIF, JXL, HEIC and more – built for smooth browsing across Windows, macOS, and Linux.