Rocket.Chat is written in CoffeeScript and JavaScript on top of the Meteor framework. Rocket.Chat is designed for you to download and run on-premise with a client interface for either desktop or mobile access. It hosts many of the same features as other modern clients, from desktop notifications to image and file uploads to an archived history with search, and integration with LDAP. Planned and in the roadmap are a native Android application, Kerberos support, and integration with many other tools from GitLab to antivirus tool for attached files.