Databases
Managed SQL databases with a free allowance, reachable from serverless functions.
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Neon
Checked Oct 28, 2026100 projects, each with 100 CU-hours/month, 1 GB storage (20 GB total) and 5 GB egress/month.
- Always free
- Commercial use not stated
- No card required
Watch out: Compute scales to zero after 5 minutes idle and this can't be disabled on Free; the next query wakes it within a few hundred milliseconds.
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Supabase
Checked Oct 28, 2026Two active projects, each with a 500 MB Postgres database; 5 GB egress and 1 GB file storage.
- Always free
- Commercial use not stated
- Card requirement not stated
Watch out: Projects are paused after 1 week of low database activity; a paused project can be restored from the dashboard for up to 1 year.
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TiDB Cloud
Checked Oct 28, 2026Five free MySQL-compatible Starter instances per org, each with 5 GiB row + 5 GiB columnar storage and 50M RUs/month.
- Always free
- Commercial use not stated
- No card required
Watch out: Starter on Alibaba Cloud (Singapore) is in public preview; Starter on AWS is generally available.