head to head · open source
Prometheus vs Orama
Prometheus has 66,906 GitHub stars, 10,969 forks, 890 open issues and last shipped yesterday. Orama has 10,593 stars, 409 forks, 23 open issues and last shipped 16 days ago. Prometheus leads on adoption by 532% (66,906 vs 10,593 stars). Prometheus is written in Go under Apache-2.0; Orama is written in TypeScript under a custom or non-standard licence. Prometheus has attracted 16% as many forks as stars, Orama 4%. Prometheus 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
| Prometheus | Orama | |
|---|---|---|
| GitHub stars | ★ 67K | ★ 11K |
| License | Apache-2.0 | Custom / other |
| Written in | Go | TypeScript |
| Last push | 2026-11-02 | 2026-10-18 |
| Forks | ⑂ 11K | ⑂ 409 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Prometheus if
- You weight community size — 67K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick Orama if
- You want the Orama feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches TypeScript
- You evaluated both and Orama fits your workflow better
About Prometheus
Prometheus Visit prometheus.io for the full documentation, examples and guides. [ ][quay] [ ][hub] Prometheus, a Cloud Native Computing Foundation project, is a systems and service monitoring system. It collects metrics from configured targets at given intervals, evaluates rule expressions, displays the results, and can trigger alerts when specified conditions are observed. The features that distinguish Prometheus from other metrics and monitoring systems are: A multi dimensional data model (time series defined by metric name and set of key/value dimensions) PromQL, a powerful and flexible query language to…
read the full Prometheus overview →
About Orama
If you need more info, help, or want to provide general feedback on Orama, join the Orama Slack channel Highlighted features Full Text search Vector Search Hybrid Search GenAI Chat Sessions Search Filters Geosearch Pinning Rules (Merchandising) Facets Fields Boosting Typo Tolerance Exact Match BM25 Stemming and tokenization in 30 languages Plugin System Installation You can install Orama using npm , yarn , pnpm , bun : Or import it directly in a browser module: With Deno, you can just use the same CDN URL or use npm specifiers: Read the complete documentation at Orama Features Usage Orama is quite simple to use…
read the full Orama overview →
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Frequently asked questions
Is Prometheus or Orama more popular?
Prometheus has 66,906 GitHub stars and Orama has 10,593. Prometheus has the larger community by that measure.
Are Prometheus and Orama free?
Both are open source. Prometheus is licensed under Apache-2.0, and Orama has no licence declared in this registry. Both are free to self-host.
What is the difference between Prometheus and Orama?
Prometheus is written in Go and Orama 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, Prometheus or Orama?
Choose Prometheus if you want the larger community (66,906 stars) or its Apache-2.0 licence terms. Choose Orama if its feature set, stack or Custom / other licence fits better. Both are self-hostable.