To get the papers, no. You can get them off of your countys government web site. To file, depending on your income it will cost to file. I hate to hear about people getting divorced. Please, if you need someone to talk to message me! I will not be judgemental towards you or your situation.
There are filing fees, but actual papers shouldn't cost anything.....some internet sites offer papers for a small fee though -- if you want to print them online you might have to pay like $2 but thats it