Despite the URL, this is not Webassembly. I will try that next when it is more supported.

Now it uses Webassembly and Web workers to run in the background.

Another online service that can solve IP problems is https://neos-server.org/neos/

That service is the best! However, it requires submission so it does not have as fast compile-run cycle.

GLPK is the GNU Linear Programming Kit.