Alt name for image element.

Use custom cname for generated filelinks.

Array of image types, e.g. ['jpg', 'webp'].

Toggle setting key attribute on sources. Useful for React. Defaults to true.

Resolution descriptors. Defaults to a sensible range between 180w and 3024w. Can also be numbers representing widths or strings representing pixel densities, e.g. ['1x', '2x'].

Object containing Filestack security policy and signature.

Object of sizes and their media query hints. Note: A fallback for img sizes is highly recommended. For example:

sizes: {
  '(min-width: 1280px)': '50vw',
  '(min-width: 640px)': '60vw',
  fallback: '100vw',
}

Image transformations options

Set if should use validator for params task

Static width to use for img with optional pixel density support.