Git X-Modules is a new product by TMate Software. We call it "Submodules – done right".

Have you ever been struggling with code spread between several repositories?

If yes, then you probably know, how troublesome the native Git Submodules could be. There a few alternatives, but none of them removes the burden from the end user completely or is a fully supported commercial product.

We used our repository mirror technology, perfected by SubGit and SVN Mirror, to create a new solution for this case - totally server-side.

Git X-Modules exists as a cloud app for GitHub (free in beta) and a self-hosted app for Atlassian Bitbucket Server / Data Center.
Dedicated plugins for GitLab and other Git servers are coming soon!