I am using Telegram a lot for chatting. Since it is possible to export the chat history with everyone you have been chatting with I wanted to create a word cloud featuring the most common words with my chat partners.
I use several tools for this. There is telegram-history-dump which itself uses telegram-cli for exporting the chat history. Then I use Matlab for some postprocessing (or preprocessing, depending on how you view it) to bring the dumped output in a (for me) manageable form. Lastly I use R to generate a word cloud like the one at the top of this post.