How much RAM does Zulip need?

Plan on 2–4 GB for typical use; add headroom if you expect many concurrent users.

Can I run other things on the same VPS?

Yes — size the plan so Zulip plus your other workloads fit in RAM with room to spare.

Communication

Threaded team chat that keeps conversations organised.

A chat model built on topics and threads, so busy channels stay readable and nothing important scrolls away.

Zulip’s threading is unlike any other chat tool and genuinely suits asynchronous teams across timezones.

1
Provision a VPS
Choose a plan with room for your data as well as the app.
2
Install the stack
Install Django + PostgreSQL + Redis.
3
Deploy the application
Follow the project’s official install guide for your distribution.
4
Enable HTTPS
Serve it on your own domain behind a reverse proxy with a certificate.
5
Back it up
Schedule a database dump plus a copy of any uploaded files to an off-box location.

Give Zulip its own database user with rights only on its own schema.
Reverse-proxy Zulip and terminate TLS at the proxy so certificates are managed in one place.
Take a VPS snapshot before major upgrades so you can roll back cleanly.
Keep Zulip patched — most self-hosting incidents are unpatched software.

How much RAM does Zulip need?: Plan on 2–4 GB for typical use; add headroom if you expect many concurrent users.
What stack does Zulip run on?: Django + PostgreSQL + Redis.
Can I run other things on the same VPS?: Yes — size the plan so Zulip plus your other workloads fit in RAM with room to spare.

Looking for something else? Popular alternatives include Mattermost, Rocket.Chat, Matrix/Synapse — browse all app guides.