For a stable and secure engineering environment, legitimate licensing is the standard. If cost is a barrier, SolidWorks offers a for hobbyists and startups at a significantly reduced rate.
Choosing to use a SolidSquad crack for SolidWorks 2020 is not a simple "free alternative." It introduces several critical vulnerabilities:
If even $10/month is too much, consider open-source or freemium tools that can open/edit SOLIDWORKS files (with limitations):
that modify Windows Registry keys to "trick" the software into recognizing pre-defined serial numbers. The "Loader" : A utility named SolidSQUADLoaderEnabler.reg