https://projects.glasgow.social/rglasgow/ | Lets you enter a reddit username and it'll return a list of interests based on keywords in their post and comment history (if available) |
https://starflyer.armchairscientist.co.uk/data/reddit/scan.php | Returns more keywords and tries to assign them a weight |
It's far from perfect, but it does a few things to try and remove irrelevant words: