git-tfs is a two-way bridge between TFS and git, similar to git-svn. It fetches TFS commits into a git repository, and lets you push your updates back to TFS.

Git-TF is a set of cross-platform, command line tools that facilitate sharing of changes between TFS and Git. These tools allow a developer to use a local Git repository, and configure it to share changes with a TFS server. Using the tools, changes made in TFS can be pulled into a local Git repository, and changes made in the Git repository can be ... More information

BigGit is a powershell module that accompanies git-tf and assists in bridging git with large TFS repositories with lots of workspace mappings