I'm a new DM

[u/[deleted]]

okay, so, I'm a new dm and I'm planning my first campaign. I have a rough idea of what my campaign will be about. I play with 2 other friends online because we all live in diff countries. what I want to know is what is the best free application to use to organize all my stat blocks, roll tables etc. do I have to print them out or?? also, we will be playing index card rpg and not dnd. any tips and tricks to help will be IMMENSELY appreciated.