A sandboxed JavaScript interpreter in JavaScript. Execute arbitrary ES5 JavaScript code line by line in isolation and safety.

Live demo: https://neil.fraser.name/software/JS-Interpreter/

Documentation: https://neil.fraser.name/software/JS-Interpreter/docs.html

Developers using JS-Interpreter should subscribe to the announcement newsgroup. Security issues and major changes will be posted here: https://groups.google.com/g/js-interpreter-announce