GitLab, Bitbucket, Redmine, SourceForge, Gogs, NotABug.org, OpenGrok, Assembla, Octotree, grep.app, Gitolite, GitBucket, Unfuddle, OctoLinker, Deveo, Gitblit, CodePlane, Codebase, repo.or.cz, RepositoryHosting.com are some alternatives to Sourcegraph.