BENRI Background Remover

The world's highest performance background transparency tool*. You can cleanly remove backgrounds from AI illustrations all the way to the edges.
*As of September 2026. According to Signal research. For AI-generated illustrations with a specified magenta single-color background.

Specify and remove a solid color background, then export as a transparent PNG.
When you want to combine AI-generated illustrations with other materials, you can make them transparent and use them conveniently.
You can process multiple images in batch and download them right away, so you can complete the task of preparing multiple materials all at once.