March 2026

Capacity 3.0

Full-stack apps with a real backend and dedicated database. No more third-party dependencies. You ship. You own the code. You control the infra.

Start building

What's new

Real Backend

Every full-stack app gets its own Express server. Real API routes, middleware, authentication — not a serverless workaround.

Dedicated Database

Each project runs its own SQLite database. Your data stays with your app. No shared infrastructure, no connection strings to manage.

You Own the Code

Export everything to GitHub. Deploy anywhere. No proprietary runtime, no vendor lock-in, no surprises on your bill.

Why this matters

The old way
Supabase dependency
Third-party auth providers
Shared database infrastructure
Vendor lock-in
External service costs
The Capacity 3.0 way
Built-in Express backend
JWT auth out of the box
Your own SQLite database
Export and deploy anywhere
All included

How it works

01

Describe your app

Tell the AI what you want to build in plain English. Choose full-stack to get a backend and database.

02

AI builds everything

Frontend, backend, database schema, API routes, authentication — generated and wired together automatically.

03

Ship it

Deploy with one click. Export to GitHub. The code is yours — forever.

Ready to build something real?

Start building full-stack apps with a real backend and database. No credit card required.

Start building