CasEel is a Chrome extension designed to provide autosaving functionality to the NetMath platform. NetMath offers interactive digital courses in various math levels and integrates Mathematica as a calculator.

One of the biggest concerns when working on any online platform is the risk of losing your progress if you forget to save manually. That's where CasEel comes in. It automatically saves all opened notebooks on NetMath every 90 seconds, ensuring that you never lose more than a minute's worth of work.

The best part about CasEel is that it's completely free to use and requires no configuration. Simply install the extension, and it starts working right out of the box.

Please note that CasEel is an independent extension and is not associated with or endorsed by the University of Illinois. "NetMath" is a registered trademark of the Board of Trustees of the University of Illinois.