The open-source whylogs profile visualizer enables visual observability of data in machine learning and data engineering with Python. It helps to spot differences in the distributions of two data profiles at a glance, quickly pinpoint data drift in your machine learning operations, and maintain the quality and relevance of high-performing data and machine learning models. The profile visualizer runs right in a Jupyter Notebook along with your logging code and grows the interpretative capabilities of the open-source whylogs library quickly becoming the standard for data logging and monitoring of ML models and data pipelines.