IrfanView an image viewer that can view, edit, and convert image files and play video/audio formats. It does not have extensive image creation and painting capabilities like Adobe Photoshop or GNU's GIMP. Rather, IrfanView is designed to be a lightweight viewer/player which is noted for its speed, ease of use, and ability to handle a wide variety of graphic file formats.

IrfanView features:
- Many supported file formats (see below).
- Multi language support (see below).
- Thumbnail/preview option
- Toolbar skins option
- Slideshow (save slideshow as EXE/SCR or burn it to CD)
- Show EXIF/IPTC/Comment text in Slideshow/Fullscreen etc.
- Support for Adobe Photoshop Filters
- Fast directory view (moving through directory)
- Batch conversion (with image processing)
- Multipage TIF editing