IrfanView () is an image viewer, editor, organizer and converter program for Microsoft Windows. It can also play video and audio files, and has some image creation and painting capabilities. IrfanView is free for non-commercial use; commercial use requires paid registration. The current version of IrfanView, 4.73, works under all versions of Windows from Windows XP to Windows 11. Version 4.44 and older versions were compatible with Windows 95/98/Me and can also be run in Linux under Wine and in macOS using WineBottler. <!-- specific file formats detailed later-->
Features
IrfanView is specifically optimized for fast image display and loading times. It supports viewing and saving of numerous file types including image formats such as BMP, GIF, JPEG, JP2 & JPM (JPEG2000), PNG (includes the optimizer OptiPNG; APNG can be read), TIFF, raw photo formats from digital cameras, ECW (Enhanced Compressed Wavelet), EMF (Enhanced Windows Metafile), FSH (EA Sports format), ICO (Windows icon), PCX (Zsoft Paintbrush), PBM (Portable BitMap), PDF (Portable Document Format), PGM (Portable GrayMap), PPM (Portable PixelMap), TGA (Truevision Targa), WebP, FLIF (Free Lossless Image Format) and viewing of media files such as Flash, Ogg, Vorbis, MPEG, MP3, MIDI, and text files.
Image editing includes crop, resize, and rotate. Images can be adjusted by modifying their brightness, contrast, tint, and gamma level manually or automatically, and by converting them between file formats. Many of these changes can be applied to multiple images in one operation using batch processing.
A plugin allows IrfanView to support lossless JPG operations: horizontal or vertical flip, rotation by 90° increments, and cropping.
Plugins
IrfanView uses plugins to handle several additional images, video, and sound formats and to add optional functionality such as filter processing or other program features.
Search engine toolbar
Prior to version 4.41 installer versions of IrfanView supported a number of browser toolbars. Version 4.40 optionally installed the Amazon 1Button App (formerly the Amazon Browser bar). Other writers have focused on its ability to open a wide variety of image formats. According to IrfanView's official website, since 2003, IrfanView has been downloaded over 1 million times per month. One independent review in 2017 described Irfanview, as "the Swiss Army Knife of image viewers".<!-- this is the EN WP -->
Pronunciation
The author has said the software is pronounced as "EarfanView"; it is named after himself and is an Islamic Arabic name, Irfan.
Logo/mascot
According to Škiljan, the IrfanView logo and mascot is a "road cat" (there is a tire track across the smallest and the biggest icon for Windows Explorer, as well as the version for Microsoft Store) but that he "likes cats", and the icon is "a joke" – the IrfanView website pictures him holding a white domestic cat.