Alternatives to IrfanView
A tiny Windows image viewer that has opened everything since 1996 and still starts instantly. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
IrfanView
A tiny Windows image viewer that has opened everything since 1996 and still starts instantly.
Replacements
Listings that take over the same core job as IrfanView.
XnView MP
Views, converts and organises images in more than five hundred formats, free for personal use.
XnView MP adds macOS and Linux support and reads more than five hundred formats with tagging, but it is heavier and slower to start.
ImageGlass
A fast image viewer that opens the formats Windows still argues about: WebP, JXL, HEIC, AVIF, SVG, HDR and raw.
ImageGlass is open source under GPL-3.0 and runs on Windows, macOS and Linux with modern formats like JPEG XL and AVIF, though some features need the Pro edition.
nomacs
A fast image viewer that opens RAW and PSD files and can show the same picture in two synchronised windows.
nomacs is free and GPL-3.0 on Windows, macOS and Linux, opening RAW and PSD files with synchronised windows, but its adjustments are minimal.
JPEGView
Browse images and make quick edits with a compact viewer.
JPEGView is a free GPL-2.0 compact Windows viewer with quick adjustments and camera RAW support, without IrfanView's plugin system.
Also worth comparing
These listings name IrfanView as their own alternative, so the relationship runs both ways.
ImageMagick
A command-line image toolkit that creates, edits, converts and composes images across more than 200 formats.
IrfanView offers batch conversion and renaming across folders in a graphical app, but it is Windows only, closed source and needs a licence for commercial use.
Similar software
Related functionality, not a direct replacement.
Caesium Image Compressor
Batch compresses JPEG, PNG and WebP images, often cutting file size dramatically with no visible quality loss.
digiKam
A photo manager built for libraries of a hundred thousand images, with face recognition, batch processing and heavy metadata support.