head to head · open source
orm vs undb
orm has 47,640 GitHub stars, 2,538 forks, 2,627 open issues and last shipped 2 days ago. undb has 2,982 stars, 156 forks, 56 open issues and last shipped 1.2 years ago. orm leads on adoption by 1,498% (47,640 vs 2,982 stars). orm is written in TypeScript under Apache-2.0; undb is written in TypeScript under AGPL-3.0. orm has attracted 5% as many forks as stars, undb 5%. orm was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| orm | undb | |
|---|---|---|
| GitHub stars | ★ 48K | ★ 3.0K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-18 | 2025-07-13 |
| Forks | ⑂ 2.5K | ⑂ 156 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick orm if
- You weight community size — 48K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick undb if
- You want the undb feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and undb fits your workflow better
About orm
Prisma ORM is a next generation TypeScript ORM for Node.js and TypeScript applications, supporting PostgreSQL, MySQL, MariaDB, SQL Server, SQLite, MongoDB, and CockroachDB, and it is aimed at developers and teams building data backed applications in that ecosystem.
About undb
undb is a local first, offline first no code database platform that also serves as a backend as a service. It lives in the open source no code database and BaaS ecosystem, and it is written in TypeScript with SQLite as its database engine. The project provides a table management UI, and it can be packaged into a single binary with Bun or run as a Docker service.
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Frequently asked questions
Is orm or undb more popular?
orm has 47,640 GitHub stars and undb has 2,982. orm has the larger community by that measure.
Are orm and undb free?
Both are open source. orm is licensed under Apache-2.0 and undb under AGPL-3.0. Neither carries a licence fee.
What is the difference between orm and undb?
orm is written in TypeScript and undb in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, orm or undb?
Choose orm if you want the larger community (47,640 stars) or its Apache-2.0 licence terms. Choose undb if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.