Expresso is a practical tool to analyze, edit and compare text styles in English. It is built on top of Python Natural Language Toolkit package by Mikhail Panko, a PhD student in computational neuroscience and high-tech enthusiast. If you have any comments or suggestions, please, drop me a line at

Check out Expresso code on GitHub.

Known issue: part-of-speech tagger and metrics heavily relying on it are not very precise. Let’s talk if you know how to improve them.