JupyterLite

What JupyterLite is

JupyterLite is a free, open-source JupyterLab distribution that runs in a browser, without a dedicated application server. It offers JupyterLab and Jupyter Notebook interfaces, as well as a minimal browser REPL. Its documented Python kernels use Pyodide or Xeus Python, and contributors maintain an R kernel based on Xeus R. The documentation lists interactive visualization support for Altair, bqplot, ipywidgets, matplotlib, and Plotly. Users can create, edit, save, upload, and download files through the browser; files are stored there, usually in IndexedDB. Data stays in the browser unless an enabled extension sends it elsewhere or notebook code uses the browser’s fetch mechanism. JupyterLite can be served as static HTTP(S) assets, embedded in another application, or deployed to several static hosting services. Browser storage is limited, and the documentation says smaller uploads up to about 50 MB should be suitable. Some Python packages may not work because of WebAssembly kernel constraints. Where browser and operating system support it, a JupyterLite site can be installed as an app.