Instax (stylized as instax) is a brand of instant still cameras and instant films marketed by Fujifilm.

The first camera and accompanying film, the Instax Mini 10 and Instax Mini[1] film, were released on November 10, 1998.[2][3][4] The "Wide" film and first accompanying camera were released the following year.[4] The Instax Square film and accompanying camera were released in 2017.

The formats of Instax film give an image size of 46 mm × 62 mm (1.8 in × 2.4 in) for the Mini, 99 mm × 62 mm (3.9 in × 2.4 in) for the Wide and 62 mm × 62 mm (2.4 in × 2.4 in) for the Square. The Instax colour film is available in Mini, Wide, and Square formats and the black and white Instax Monochrome is available in Mini and Wide formats.

Other manufacturers also make compatible cameras and camera backs.