You should open source it. You lose nothing by creating a repository on GitHub and storing it there. And someone might find it useful. That said, chances of it

You should open source it. You lose nothing by creating a repository on GitHub and storing it there. And someone might find it useful. That said, chances of it being useful to anyone would increase if the project had at least some introductory documentation. So, while there's no point in documenting and cleaning up everything, if you don't want to waste time on it, having a tutorial or "start here" documentation would probably help. It takes a bit of courage to put up your "ugly" code out there, but then again, to paraphrase, if you're not ashamed of it, you waited too long :-) Maybe in the future you (or someone for whom the code is useful) will clean it up a bit, or add stuff to it. You never know.