Database tools for AI-built apps
Managed Postgres, SQLite and document stores with free tiers. 4 options, each with its free plan and the catch.
Every database option
Supabase
Hosted Postgres with auth, storage, realtime and edge functions in one project. It is the backend Lovable and many Bolt apps connect to.
Free 500 MB database, 1 GB file storage, 5 GB egress plus 5 GB cached egress Neon
Serverless Postgres that scales to zero when idle, with database branching. Works with any Postgres client or ORM (Prisma, Drizzle).
Free Up to 100 projects, no credit card required Turso
Hosted SQLite-compatible databases. Lightweight enough to give every user or tenant their own database.
Free $0/month, no credit card required Firebase (Cloud Firestore)
Google's app platform: Firestore document database, Auth, Hosting and Cloud Messaging. Common in apps built with Firebase Studio.
Free Spark plan: no payment method neededFree tiers side by side
The first two lines of each free plan, and the price where paid plans start.
| Tool | Free plan | Paid from |
|---|---|---|
| Supabase | 500 MB database, 1 GB file storage, 5 GB egress plus 5 GB cached egress; 50,000 monthly active users for Auth | Pro: from $25/month |
| Neon | Up to 100 projects, no credit card required; 100 CU-hours of compute per project per month | Launch: pay-as-you-go, $0.106 per CU-hour |
| Turso | $0/month, no credit card required; 100 databases and 5 GB of storage | Developer: $4.99/month |
| Firebase (Cloud Firestore) | Spark plan: no payment method needed; Firestore: 1 GiB stored, 50K reads/day, 20K writes/day, 20K deletes/day | Blaze: pay as you go |