Choose an image.
Limits
  • Up to 20 images, 20 MiB each, 8192 pixels on an edge, and 16 million pixels. Animated GIFs are refused.
  • JPEG output uses 80 percent quality. Transparency becomes white.
  • Processing runs away from the page and can be cancelled. Preview addresses are released when you leave or replace the image.
  • The sample is a 32 by 32 grid.
  • Desktop limits are provisional. Physical mobile and Safari verification remains open.

What happens to your data

Image transparency checker runs inside this browser tab, and the page's code comes from this site. There is no application server to receive your data, and the site's security policy limits connections to this site.

How local processing works

Good to know

  • The sample is a 32 by 32 grid.
  • Desktop limits are provisional. Physical mobile and Safari verification remains open.