Free version

there are no free versions of these product.
You can try applying to special program for students - see https://sales.jetbrains.com/hc/en-gb/articles/207241195-Do-you-offer-free-licenses-for-students-and-teachers.
I'd suggest contacting sales for information about existing programs/discounts.

Meanwhile you can try Early Access Preview builds - they give the access to the new features we're currently working on and are free to use

Thanks, Elena for sharing this link. :-)

I get benefit from it.