Downscale Pixel Art

Hi Guys

bat.png

i draw this bad a while ago on 100x100.
And scaled it up to 200x200.
Now i want to scale it down and rip it apart for animation and scale it up again.

A Year ago i found a tool, wich detetcts the pixels and scales it properly down, but i cant find this tool, or any other that fits my puropose.

Can someone help me?

@schlauewurst Most pixel tools do a pretty good job of scaling down, just be sure to have them to "Nearest Neighbor" mode.

Aseprite can scale this down just fine.