Streamlit

Streamlit is the open-source Python library that transforms data scripts into interactive, shareable web applications in minutes (not weeks).

Streamlit is purpose-built for data scientists and ML engineers: It eliminates the need for front-end development knowledge (HTML, CSS, JavaScript). The core API uses pure Python to quickly build powerful data apps, dashboards, and machine learning prototypes. Users leverage simple commands (e.g., `st.slider`, `st.dataframe`) to integrate interactive widgets and display data from libraries like Pandas or Matplotlib. The platform supports rapid iteration, automatically rerunning the script on user interaction, and offers streamlined deployment via the Streamlit Community Cloud.

https://streamlit.io