Plotly Dash is an open-source Python framework for building interactive web applications and dashboards, particularly focused on data visualization and analytics. It allows developers and data scientists to create rich, customizable UIs entirely in Python without needing expertise in JavaScript, HTML, or CSS. Dash leverages Plotly’s powerful charting library for visualizations and integrates with analytical libraries like Pandas, NumPy, and scikit-learn, making it well-suited for real-time data analysis, machine learning model monitoring, and scientific applications. Applications can be easily deployed on-premises or in the cloud, and Dash Enterprise provides additional features for scaling, authentication, and collaboration. With its simplicity, flexibility, and strong ecosystem, Plotly Dash is a popular choice for teams that want to turn data insights into interactive, production-ready applications.