Tuleap

https://www.tuleap.org

Snippet from Wikipedia: Tuleap

Tuleap is an application lifecycle management system which focuses on agile software development while supporting other approaches towards project management developed and maintained by Enalean, a French tech company founded in 2011 and headquartered in France. It is open source, released under the GNU General Public License, version 2, and aims to rival proprietary tools like CollabNet, Jira\ and Confluence (and the Atlassian Suite), and Crucible.