A GIFV file is a video file saved in a format developed by Imgur that improves upon the GIF format. It contains video compressed in the H.264 format and stored inside an .MP4 file container.

GIF is a popular format for sharing short animation loops on the web, which includes sites such as Twitter and Imgur. The GIFV format is part of Imgur's "Project GIFV" initiative to improve the GIF format. One of the main upgrades of the format is that GIFV files are significantly smaller than GIF files, which enables faster loading speeds. NOTE: The Imgur site converts uploaded GIF files to the GIFV format.