At the very top of the page on Cardschat there is a TAB labelled Poker > Poker Tools > Poker Hand Converter
Hold Em Manager & Poker Tracker are great Heads Up Displays that keep your hand histories.
It's worth the money, sharkscope also has one but it's a bit pricier but gives you real in depth information about any players at your table.
They're the Elite HUD. Hold em Manager & Poker Tracker are more affordable
That will let you copy and paste hands into the Cardschat converter from Poker Tracker or Hold Em Manager 2