IrfanView is an image viewer, editor, organiser 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.
It is noted for its small size, speed, ease of use, and ability to handle a wide variety of graphic file formats. It was first released in 1996.
Irfanview is extremely fast and easy to use when you need to batch convert, resize or rename imagefiles.
