Modern, self-hosted messaging across web, PC and phones, built on open source software
Mattermost is not only a Slack clone but it has extended functionality. In contrast to Slack and other proprietary SaaS services, Mattermost offers an open source, private cloud platform where enterprises have complete control of their vital communications.
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A safe home for all your data
Nextcloud is a suite of client-server software for creating and using file hosting services. It is functionally similar to Dropbox, Google Drive, although Nextcloud is free and open-source and hosted on a private server.
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