Woxi

Woxi implements the Wolfram Language in Rust, which is unusual company for a language normally reached through Mathematica or the official kernel. The browser playground evaluates on the client, so what you type never leaves the page, and a full-screen version is there for longer sessions.

Outside the browser, woxi eval takes a single expression from the shell and the same binary runs .wls scripts. A Jupyter kernel installs locally or runs through JupyterLite with no install, and Woxi Studio is a native editor for .nb notebooks that exports to .ipynb, Markdown, LaTeX, Typst, and PDF. How much of the language is covered is not stated on the site, which is the first thing to check against your own notebooks.