* Zulip is [100% open-source software][zulip-github], with no "open core" catch. When you self-host Zulip, you get the same software as [Zulip Cloud Standard](https://zulip.com/plans/) customers. * Retain full control over your data and simplify compliance by self-hosting Zulip behind your firewall. * We work hard to make it easy to [install][install-zulip], [back up][back-up-zulip], and [maintain][maintain-zulip] a self-hosted Zulip server. Self-host Zulip directly on Ubuntu or Debian Linux, in Docker, or with prebuilt images for Digital Ocean and Render. * Customize Zulip for all your needs. It's easy to develop and maintain [custom integrations](/api/incoming-webhooks-overview) and [features][modify-zulip]. Learn more about [self-hosting Zulip](https://zulip.com/self-hosting/). [zulip-github]: https://github.com/zulip/zulip#readme [install-zulip]: https://zulip.readthedocs.io/en/stable/production/install.html [back-up-zulip]: https://zulip.readthedocs.io/en/stable/production/export-and-import.html#backups [maintain-zulip]: https://zulip.readthedocs.io/en/stable/production/upgrade.html [modify-zulip]: https://zulip.readthedocs.io/en/stable/production/modify.html