I'm trying to unhide information in a .bmp image using the tools on https://incoherency.co.uk/image-steganography/#unhide
However all I can see when using the tools are at best a black image with a few colored squares at the bottom and at worst a slightly blurry version of the image I'm using.
I've tried to use other tools but they don't appear to like .bmp files.
Are there any other methods to detect this? (that would be as easy as this site is supposed to be)