head to head · open source
orm vs Chroma
orm has 47,640 GitHub stars, 2,538 forks, 2,627 open issues and last shipped 2 days ago. Chroma has 29,333 stars, 2,522 forks, 843 open issues and last shipped 2 days ago. orm leads on adoption by 62% (47,640 vs 29,333 stars). orm is written in TypeScript under Apache-2.0; Chroma is written in Rust under Apache-2.0. orm has attracted 5% as many forks as stars, Chroma 9%. Chroma was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (database), so they are genuine substitutes rather than adjacent tools.
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 | Chroma | |
|---|---|---|
| GitHub stars | ★ 48K | ★ 29K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | TypeScript | Rust |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 2.5K | ⑂ 2.5K |
| 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 Chroma if
- You want the Chroma 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 Chroma 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 Chroma
Chroma is an open source vector database designed to store, index, and retrieve embeddings for AI applications. It runs as a local Python or JavaScript client or in client server mode, providing a lightweight infrastructure layer for AI search and retrieval workloads. Built in Rust and licensed under Apache 2.0, it targets developers building RAG, agents, and other embedding dependent systems.
read the full Chroma overview →
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Frequently asked questions
Is orm or Chroma more popular?
orm has 47,640 GitHub stars and Chroma has 29,333. orm has the larger community by that measure.
Are orm and Chroma free?
Both are open source. orm is licensed under Apache-2.0 and Chroma under Apache-2.0. Neither carries a licence fee.
What is the difference between orm and Chroma?
orm is written in TypeScript and Chroma 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 Chroma?
Choose orm if you want the larger community (47,640 stars) or its Apache-2.0 licence terms. Choose Chroma if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.