Yes, sourcetree can connect to any Git or Mercurial remote that supports standard protocols.
You will probably have to create an empty repository on Github, then add that as a remote to SourceTree, then push your repository. However, I've never used Github, so the first step may be inaccurate.
Supported Platforms macOS Windows We recently introduced support for additional hosting services such as GitHub Enterprise, GitLab (Cloud, Community Edition, Enterprise Edition), and...
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