Zulip vs. Slack

Zulip is an organized team chat application for distributed teams. Zulip’s 100% open-source software is available as a cloud service or a self-hosted solution. With conversations organized by topic, Zulip is ideal for both live and asynchronous communication Zulip serves startups, and small and mid-sized businesses, as well as communities with up to tens of thousands of members. It’s used by thousands of organizations around the world.

Slack is your single workspace that connects you with the people and tools you work with everyday, no matter where you are or what you do. With Slack you get real-time messaging through calls and chat, a searchable record of all your files and conversations, and integrations with a growing number of handy bots and apps. Now everyone can finally be on the same page and get their work done. Slack: It’s where work happens.