A TIFF, or sometimes TIF, is a file format for saving raster images. With Mapbox, a TIFF is often a GeoTIFF, meaning the file is embedded with georeferencing information.
You can upload TIFF files as tilesets in Mapbox Studio and use them in the Mapbox Studio style editor.
You can also import TIFF files into Mapbox Studio Classic and upload to Mapbox as a tileset that way. When uploading a TIFF file, keep in mind the current size limit for TIFF files.
Download a sample TIFF file