Paste your text into Analyze My Writing and it will generate a ton of information about your writing. Analyze My Writing will give you a break-down of the readability of your writing on five indices. The analysis will include listings of the most common words and most common word pairs in your writing. A listing of how frequently you use punctuation and punctuation types is included in the analysis provided by Analyze My Writing. Finally, a word cloud is included at the end of the analysis of your writing.
Via Jim Lerman