Vertabase Timer : Fun & Easy way to track time on projects and track time on clients.
Sleek desktop time tracking clock for Windows and MAC.
Mattermost : Mattermost is a self-hosted solution for bringing all your team communication to one place, and making it searchable and accessible anywhere
WorkAdventure : Stay connected with your co-workers, by creating your own online workspace to work remotely.
YunoHost : YunoHost is a server operating system aiming to make self-hosting accessible to everyone.
Imagine all your team communication in one place, instantly searchable, available wherever you go. That's Slack.