STEAMID I/O lookup and convert your steamID, steamID3, steamID64, customURL and community id

input 76561197972412999 interpreted as steamID64 anchor
steamID
copy to clipboard STEAM_0:1:6073635
steamID3
copy to clipboard [U:1:12147271]
steamID64
copy to clipboard 76561197972412999
profile
view on Steamcommunity.com http://steamcommunity.com/profiles/76561197972412999
add friend