Mattermost is a customizable messaging platform designed for enterprises that demand privacy and control, offering seamless integrations and robust tools for effective project management.

Chatwoot is an open-source platform that unifies communication across channels, enabling real-time conversations and team collaboration for an exceptional support experience.

Zulip is an�innovative chat application that combines the immediacy of real-time chat with the organizational features of email. It allows teams to have focused discussions while keeping track of multiple topics.