a tool to organize steam friends list?

I don't know of a website, but it would be possible.

You can manually do it by grouping friends in your steam friends window, by right clicking them and going to "tag as"

I think u can check banned friends on Steamrep website

Your own banned friends are listed here https://steamrep.com/search?q=http%3A%2F%2Fsteamcommunity.com%2Fid%2FKillingArts%2F
As far as games owned go I have no idea

guys, thanks, but i know steamrep of course.

1. steamrep is a pain in the ass, if you quickly want to see your banned friends. there is no filter option. so i have to browse that list of 800 friends.

2. steamrep can only help me with banned friends. that is really not my priority.

i mainly want to delete people who have very few games, who are offline for a long time and so on. lots of people add me for trading. and after a while i want to get rid of them. i need to, since i am running out of space in my friends list. right now what i do is go through my list manually and look for people who can be deleted. i need a tool that shows me e.g. all friends with <100 games with a single click. :)

800 ? pfffff I only have like 160 ish but I know almost everyone on my list :P

well, i guess such a thing just doesn't exist, huh. ^^