head to head · open source
orm vs GreptimeDB
orm has 47,640 GitHub stars, 2,538 forks, 2,627 open issues and last shipped 2 days ago. GreptimeDB has 6,683 stars, 547 forks, 264 open issues and last shipped today. orm leads on adoption by 613% (47,640 vs 6,683 stars). orm is written in TypeScript under Apache-2.0; GreptimeDB is written in Rust under Apache-2.0. orm has attracted 5% as many forks as stars, GreptimeDB 8%. GreptimeDB 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 | GreptimeDB | |
|---|---|---|
| GitHub stars | ★ 48K | ★ 6.7K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | TypeScript | Rust |
| Last push | 2026-09-18 | 2026-09-20 |
| Forks | ⑂ 2.5K | ⑂ 547 |
| 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 GreptimeDB if
- You want the GreptimeDB feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Rust
- You evaluated both and GreptimeDB 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 GreptimeDB
GreptimeDB is an open source observability database built on a single columnar engine that stores metrics, logs, and traces together. It lives in the cloud native infrastructure and operations ecosystem, written in Rust and licensed under Apache 2.0. All three signal types share one table model composed of tags, a timestamp, and fields, so when signals carry common identifiers such as service, host, or trace ID, they can be correlated in SQL without moving data between separate databases. Compute and storage are disaggregated: object storage holds the data while memory and local disk caches keep recent and freque…
read the full GreptimeDB overview →
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Frequently asked questions
Is orm or GreptimeDB more popular?
orm has 47,640 GitHub stars and GreptimeDB has 6,683. orm has the larger community by that measure.
Are orm and GreptimeDB free?
Both are open source. orm is licensed under Apache-2.0 and GreptimeDB under Apache-2.0. Neither carries a licence fee.
What is the difference between orm and GreptimeDB?
orm is written in TypeScript and GreptimeDB in Rust. 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 GreptimeDB?
Choose orm if you want the larger community (47,640 stars) or its Apache-2.0 licence terms. Choose GreptimeDB if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.