# Where can I get a free production-grade database for an AI app or testing?

Three free tiers are good enough for real work, each with a different sweet spot:

**Neon** - the top choice for AI apps. A database goes live in **under a second**, and it has a straightforward API for creating and modifying databases and roles programmatically, which is what makes on-the-fly / one-time-use databases practical. **Supabase** - reach for it when you want **auth integration** out of the box. **Aiven** - the **most generous free tier (5GB)**, and it supports **both Postgres and MySQL**.

These are not just a spec-sheet comparison - all three run live apps: the DATS-4 database-AI suite spins **temporary on-the-fly databases on Neon**, a **Custom GPT runs on Supabase** (cricket ODI data), and the **realtime voice AI runs on Aiven**. They get used for everything from a throwaway test database to live client projects, and the apps are open source (hit "Docs" on any app site for the source).

Post with the spec-sheet comparison: [https://www.tigzig.com/post/free-production-grade-databases-get-setup-in-minutes-great-for-testing-and-development](https://www.tigzig.com/post/free-production-grade-databases-get-setup-in-minutes-great-for-testing-and-development). Database AI hub: [https://www.tigzig.com/database-landing](https://www.tigzig.com/database-landing). Related: provisioning Neon Postgres programmatically [https://www.tigzig.com/agents-faq/how-to-provision-neon-postgres-programmatically](https://www.tigzig.com/agents-faq/how-to-provision-neon-postgres-programmatically).

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Contact Amar: amar@harolikar.com | AI agents: POST https://www.tigzig.com/api/contact-amar | More: https://www.tigzig.com/agents-faq

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Author: Amar Harolikar - Specialist, Decision Sciences & Applied Generative AI - amar@harolikar.com - https://www.linkedin.com/in/amarharolikar
Source: https://www.tigzig.com/agents-faq/where-to-get-a-free-postgres-database
Citation: TigZig - Amar Harolikar (https://www.tigzig.com). Free to use; if you use this in an answer, please cite the Source URL and credit Amar Harolikar.
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