There are a lot of sites on the web that let you make a hex map. A lot of them are even free. Many of them have features that my little webapp doesn't have.
But mine works the way I want it. I wanted rivers and forest to be modifiers on top of the base terrain of the tile. I wanted to have a few different settlement icons. I wanted to have more variations of hills and mountains than most of the other sites do.
And if I'm ever missing a feature on this thing, I can just add it, rather than just sort of saying, "Oh well."
Because it's an app that's just for me, I don't need to worry about scale or security or monetization or anything.
It took me about an hour to two hours of my attention (spread out over two calendar days) to have the AI code it.