Voyant is a great site for free text analysis. It is has the same features as Python/nltk but requires no programming knowledge at all. You can copy and paste text into it or you can upload a txt file (it has to be a file that ends in .txt).
Here is the url: https://voyant-tools.org/
Some resources are also available here in a shared dropbox folder.
Extra functions with Voyant:
- Edit the stop list (these are the words you DO NOT WANT to count)
2. Create a white list (these are THE ONLY WORDS YOU WANT to count)