RustBaas

📦

Single binary, one data folder

SQLite under the hood. Drop one executable on a server, run the setup wizard, and you have a working backend. No services to install, no migrations to run by hand.

🏢

Multi-tenant by design

System → realm → app. Each app owns its end-user pool, OAuth config, and data; realms group apps under one administrative tenant.

🔐

Auth that fits

Email + password, email OTP, TOTP, OAuth2 (Google, GitHub, any OIDC). Refresh tokens with rotation. Three layers of admins.

⚡

Realtime out of the box

SSE and WebSocket subscriptions on every collection. Records publish to in-process pub/sub on every create / update / delete.

🧩

Extensible without a redeploy

Embedded QuickJS runtime. Drop a .js or .ts file into data/hooks and lifecycle handlers, cron jobs, and custom HTTP routes light up.

🛡️

Hierarchical policies

Master sets bounds. Realm tightens. App picks a value inside both. Auto-clamp + audit when a parent narrows.

📊

Operator-friendly

Per-scope audit log, embedded SvelteKit dashboard, optional Litestream replication. Backups are object storage; restores are a directory copy.

🦀

Built in Rust

axum + sqlx + tokio. Zero unsafe. Property-tested config engine. Comprehensive test suite that runs on every commit.

Why RustBaas?

You want a backend. You don't want to wire up Postgres, Redis, S3, an auth service, a queue, a cron runner, and an admin UI before you can ship your first feature.

RustBaas gives you all of that in one binary, with a data/ directory you can scp or tar for backups and a dashboard at /_/ for everything you'd otherwise need a custom admin panel for.

# Run it
./rustbase

# Visit the dashboard
open http://localhost:8080/_/

# Make a request
curl http://localhost:8080/api/realms/master/apps/blog/collections/posts/records \
  -H "Authorization: Bearer $TOKEN" \
  -d '{"title":"Hello","body":"first post"}'

That's it. The setup wizard creates the master admin on first visit, the API is documented in the REST reference, and JS hooks under data/hooks/<realm>/<app>/ extend the runtime without a rebuild.

Support us

RustBaas is built and maintained on personal time. If it helps you ship — or if you just want to encourage more work on it — contributions are welcome through PayPal. The link is a payment link, so you set the amount yourself.

→ Support RustBaas on PayPal

Scan with your phone — opens the PayPal payment page.

Code contributions, bug reports, and doc fixes are equally valued — see the contributing guide.

RustBaasOne binary. One data folder. Your backend.