Free Cloud PostgreSQL Databases

Quick list of free (or free‑tier) cloud PostgreSQL options. Limits change over time, so double‑check before committing to anything long‑term.

1. Neon

Serverless Postgres. Free plan limits are per project.

• 100 CU-hours per month per project
• 0.5 GB storage per project
• Compute sizes up to 2 CU (8 GB RAM)
• Features: branching, autoscaling, read replicas

2. Supabase

Free plan limits are per project.

• 500 MB database size
• 5 GB egress
• 1 GB file storage
• 50,000 monthly active users

3. Aiven

Managed Postgres with a free plan and clear resource limits.

• 1 CPU and 1 GB RAM
• 1 GB disk storage
• Backups included
• Limitations: no connection pooling, max_connections = 20

4. CockroachDB

PostgreSQL-compatible distributed SQL with a serverless free tier (organization-wide).

• 10 GiB storage per month free
• 50M request units (RUs) per month free
• PostgreSQL wire-protocol compatible

5. YugabyteDB

PostgreSQL-compatible distributed SQL. The cloud service is paid, but there is a time‑limited free trial.

• Time‑limited free trial for YugabyteDB Aeon (managed service)
• PostgreSQL compatibility (YSQL API)