FUIF

FUIF (Free Universal Image Format) is an image format created by Jon Sneyers, who previously created another format, FLIF. FUIF is designed for responsive web design, so that shortened versions of a file will render as lower-resolution versions of the image.

Development of FUIF has been discontinued in favor of JPEG XL.

Software

 * FUIF software Github

Links

 * Introducing FUIF: Responsive Images by Design
 * FUIF: Why Do We Need a New Image File Format?
 * FUIF: Yet another image format?