Free, Production-Grade Databases. Get setup in minutes. Great for testing and development

Published: September 1, 2025

Neon: My top choice for AI apps. Database live in <1 sec. Straightforward API for creating / modifying databases and role.

Supabase: Auth integration.

Aiven: Most generous free tier (5GB) and supports both Postgres & MySQL.

I use these for creating a 'one-time-use' database for testing to live client projects.

See live in action on www.tigzig.com -> Database AI & SQL Apps

• DATS-4: temporary on-the-fly databases powered by Neon
• Custom GPT: powered by Supabase with Cricket ODI data
• Realtime Voice AI: powered by Aiven

All open source. Hit 'Docs' on app site for source code

The attached image is a quick-glance spec sheet comparing my notes on each

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Working on something similar? How I work covers the rates, the availability and what I take on.