Slack vs Metabase
Self-hosted for $4/mo on hetzner CAX11, versus $7-$15/user/mo on Slack.
Side-by-side
| Slack | Metabase (self-hosted) | |
|---|---|---|
| Pricing model | $7-$15/user/mo | $4.13/mo flat (any team size) |
| Hosting | Slack's servers | Your VPS (hetzner CAX11) |
| Data ownership | Slack controls the data | Your disk, your encryption |
| Source code | Closed | Open (NOASSERTION) |
| Customization | API + integrations only | Full source access; modify freely |
| Maintenance burden | Zero | Backups + updates (Docker available) |
| Health score (ossreplace) | — | 80 / 100 |
Why teams leave Slack
- Free tier hides messages older than 90 days
- Per-seat pricing ($7-15/user/mo) gets expensive past 20 people
- No self-hosting option even on Enterprise Grid
- Storage is capped per workspace
Metabase answers this by: Mattermost, Rocket.Chat, and Zulip give the same channels, threads, and integrations on your infra with full message history forever.
The cost math
Assumes 5-person team using Slack at the midpoint price ($11/user/mo).
| Period | Slack | Metabase on hetzner | You save |
|---|---|---|---|
| Monthly | $55 | $4.13 | $50.87 |
| Yearly | $660 | $49.56 | $610.44 |
| 3 years | $1,980 | $149 | $1,831 |
Deploy Metabase now
One-click deploys at the cheapest provider for this workload:
Affiliate disclosure — these links may earn ossreplace a commission at no cost to you.
Common questions
Is Metabase a good alternative to Slack?
Metabase is an open-source, self-hostable alternative to Slack with an ossreplace health score of 80/100 — a composite of project activity, maturity, community, security, and adoption. It runs on your own hetzner VPS from $4.13/mo with full source access under the NOASSERTION license, versus Slack's $7–15/user/mo hosted plans.
How much cheaper is Metabase than Slack?
A 5-person team pays about $55/mo on Slack. Self-hosting Metabase on hetzner CAX11 costs a flat $4.13/mo regardless of team size — roughly $1,831 less over three years (92% lower).
Is Metabase hard to self-host?
Metabase ships a Docker setup, so deployment is usually a single docker-compose command on a $4.13/mo VPS. You own the backups and updates, and there are no per-seat fees.
Do you keep control of your data with Metabase vs Slack?
Yes. Because Metabase runs on your own server, the data lives on your disk under your encryption. With Slack, Slack controls the hosting, storage, and access.