Can I still get a free 3rd level domain?

Question

Domain name market

I want to deploy a small application, you can say for tests and play around, try how it's all done.) Can I still take a free domain at this time ?? I’ve been shoveling the Internet for three days, but in the end it all comes down to buying! I understand that only cheese in a mousetrap is free, but still, the interest is above all this.)
I looked at free hostings, but where the war file is free. 350 meters is not suitable or they do not allow the use of databases.

Answer 1

www.freenom.com
2 levels free

Answer 2

Buy yourself a second-level domain by last name / nickname or just myfortest.ru
and use subdomains to play around.