Most character description generators hand you a paragraph: a few lines about looks, a personality, a quirk. For a novelist or a game master that paragraph is the finished product, and the quick, free ones are fine for it. This page is for the other case, where you read the description and then want to see the person.
That step has a trap. Paste the same paragraph into an image generator twice and you get two people who both match the words and neither matches the other. “Short dark hair, green jacket, tired eyes” describes thousands of faces. Words describe a type; a picture is one particular person. Once a story has more than one scene, that difference is the whole problem.
In Reelfo the description is the first half of a pair. It is written into the cast, a character sheet is drawn from it, and from then on the sheet, not the sentence, is what stands for the character in every shot.