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Free database for open source projects

5 companies, 5 verified offers. Not sure which you qualify for? Match your repo.

Convex

databasehosting

Convex Open Source Program (free Convex Pro)

Free Convex Pro for one team with the built-in monthly Pro resource limits, plus swag (stickers, shirts, gear) and direct access to the Convex team and developer community.

Eligibility: for the project; Project must be actively maintained and fully open source, be built with Convex or planning to integrate it, and support the developer ecosystem (tools, libraries, or resources). Funded companies and startups are directed to the separate Convex for Startups program. Linking back to Convex is encouraged but not required.

How to apply: Apply at convex.dev/open-source-program/apply; applications reviewed on a rolling basis with a response within 60 days.

last verified 2026-07-07

Neon

database

Neon Open Source Program (Postgres platform credits)

Up to $5,000 per year in Neon platform credits for open source projects that use Postgres, plus $20 per referred customer (unlimited) and promotional support (blog features, social media, case studies, co-marketing).

Eligibility: for the project; OSI license required; Software must be open source under a recognized license and self-hostable, must use Postgres as a component or extension, and must document how users can integrate it with Neon. Existing Neon usage not required, but integrated projects get priority.

How to apply: Application form on the program page; response typically within 1-3 business days.

last verified 2026-07-07

Tembo

AI and MLdatabase

Tembo platform (free for open source)

Full access to all Tembo features including AI agents, automations, and integrations, with unlimited contributors, priority support, and perpetual free access for as long as the project remains open source.

Eligibility: for the project; OSI license required; non-commercial only; public repo required; Project must be publicly hosted on GitHub or GitLab under an OSI-approved license (e.g. MIT, Apache 2.0), be non-commercial with no revenue, show active development and community participation; applicant must be an official owner or maintainer.

How to apply: Application form on the page (name, email, repository link) with maintainer confirmation.

last verified 2026-07-07

Upstash

databasemore tools

Upstash Open Source Program (monthly credits)

$1,000 monthly credit grant covering all Upstash costs (Redis, QStash, etc.), direct technical/integration support with Pro-level priority, and co-marketing (technical articles, backlinks).

Eligibility: for the project; public repo required; For open source projects building on Upstash; no further formal criteria published. Application form notes it is open until September 29th, so availability may be time-windowed.

How to apply: Application form on the page (name, Twitter/X username, GitHub repo link); reviewed on a rolling basis.

last verified 2026-07-07

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