@robinbobin/mimetype-constants/src/typeGroups/image/types.ts

Extensible MIME constants with typescript support

export type TImageSubtype =
  | 'avif'
  | 'bmp'
  | 'gif'
  | 'jpeg'
  | 'png'
  | 'svgXml'
  | 'tiff'
  | 'vndMicrosoftIcon'
  | 'webp'