Layer 3 · self-hosting reality check
What it actually takes to self-host Supabase
The docs say 4 GB. In practice you want 8 GB. Here is the honest version — real requirements, real monthly cost, what you will be maintaining, and the one thing that catches people out.
Usually reached from Firebase alternatives, where Supabase is one of the picks.
Wondering whether you need to at all? Is Firebase free? — what the free tier actually allows, and where the wall is.
| RAM — documented minimum | 4 GB |
|---|---|
| RAM — what it really needs | 8 GB |
| CPU | 4 vCPU |
| Disk | Database size × 2 for WAL and backups |
| Monthly cost | $30–60/mo self-hosted, against $25+/mo on their cloud — the saving is real but smaller than most self-hosting moves |
| Setup time | Half a day |
| How you install it | docker compose — it is roughly eight services (Postgres, GoTrue, PostgREST, Realtime, Storage, Kong, Studio, and the meta service) |
| Ongoing maintenance | High for a self-hosted stack. You own Postgres upgrades, JWT secret rotation and the coordination of eight components that release independently. |
| Where it stops scaling | Fine for internal tools and modest apps. At real traffic you are operating a Postgres cluster, and that is the actual job. |
The thing that catches people out
Self-hosted Supabase is not the hosted product minus the bill. Automated backups, point-in-time recovery, connection pooling at scale, and the dashboard's more advanced features are either absent or yours to build. Read their self-hosting docs honestly before committing — a good number of teams migrate back.
When not to self-host Supabase
You chose Supabase to avoid running infrastructure. Self-hosting it reinstates exactly the work you were paying to skip, and their hosted pricing is reasonable.
Every guide here carries this section. A site that only ever tells you to self-host is selling something — the useful answer is sometimes no.
Other Layer 3 self-hosting guides
Common questions
- How much RAM does Supabase actually need?
- 8 GB in practice. The documented minimum is 4 GB, which is the figure at which the process starts rather than the figure at which it works under real use. 4 vCPU alongside it.
- What does self-hosting Supabase cost per month?
- $30–60/mo self-hosted, against $25+/mo on their cloud — the saving is real but smaller than most self-hosting moves This is commodity VPS pricing and excludes your time, which is the larger cost for most people — budget for high for a self-hosted stack. You own Postgres upgrades, JWT secret rotation and the coordination of eight components that release independently.
- How long does it take to set up Supabase?
- Half a day, via docker compose — it is roughly eight services (Postgres, GoTrue, PostgREST, Realtime, Storage, Kong, Studio, and the meta service).
- When should I NOT self-host Supabase?
- You chose Supabase to avoid running infrastructure. Self-hosting it reinstates exactly the work you were paying to skip, and their hosted pricing is reasonable.
- What is the most common mistake when self-hosting Supabase?
- Self-hosted Supabase is not the hosted product minus the bill. Automated backups, point-in-time recovery, connection pooling at scale, and the dashboard's more advanced features are either absent or yours to build. Read their self-hosting docs honestly before committing — a good number of teams migrate back.