Yes, both GitHub and codebeat offer a Free Trial.
GitHub is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
codebeat is designed for Large Enterprises, Medium Business and Small Business.
Pricing for GitHub Starts at $4/User/Month whereas for codebeat Starts at $20/User/Month.
Some top alternatives to GitHub includes LiveCode, Codeanywhere, Visual Studio IDE, CodeinCloud, GitLive, Microsoft Azure, GitLab, CodeSee and Bitbucket.
Some top alternatives to codebeat includes Whale Software, DeepSource, ReSharper, ReSharper C++, Codacy, CAST AIP, Code Climate Quality, SoftaCheck, Codeac and Code Inspector.