IrfanView is a very fast, small, compact and innovative freeware graphic viewer compatible with almost any version of Microsoft Windows. It is extremely helpful as a tool that helps users watch and manage their video and image files.
Core functionality of IrfanView makes it a very powerful graphic viewer designed to be easy to use both for professionals and not professionals. All the functions available can be easily accessed by a simple, beautifully designed interface. The program supports a huge number of various media formats, most notably graphic image formats such as BMP, DIB, JPG, JPEG, PSD, PDF, GIF, TTF, TXT, ANI, CUR, CLP, DDS, CAM, Mac PICT, QTIF, MP4, WAD, WBMP, RAS, SUN, SFF, PPM and many others.
Recent versions add support of different media formats such as audio and video. Supported formats include WAV, AVI, WMA, WMV, MPG, MPEG, MP3, MID. It is worth mentioning that IrfanView does not replace Quicktime when it comes to working with files of specific formats like MOV.
IrfanView supports multiple languages and, in addition to being able to view the files, it gives you the ability to convert them to a different format, create slideshows, edit images by adding visual filters and effects. Overall, it's a highly useful tool to have if you are working with those kinds of files and need an instrument universal enough to make life easier.