DataVize is a web based application which provides various operations for datasciencetist such as: Prepocessing, Data Visualization and classfication with decision tree and KNN classifier. This application also have a understandable UI design using streamlit. To use this Application you just have to install all the necessary python libraries and just have to run to code on any python compiler. To install all the necessary libraies just type "pip install pandas numpy scikit-learn matplotlib seaborn plotly streamlit" on command pompt and you are goot to go.