COMSOL Multiphysics does not offer a permanent "free" license. However, you can access the software through several legitimate channels without an upfront purchase: 1. Free Trial License
While the client software itself is free, it requires a connection to a licensed instance of COMSOL Server to function. It is not a standalone version of the Multiphysics modeling environment. 4. Academic Pricing and Books comsol multiphysics free license
If you have a legitimate noncommercial or academic need, email your local COMSOL office. They are generally helpful for evaluation requests and can provide guidance on available academic options. COMSOL Multiphysics does not offer a permanent "free"