head to head · open source
Prometheus vs sonic
Prometheus has 66,906 GitHub stars, 10,969 forks, 890 open issues and last shipped yesterday. sonic has 21,373 stars, 621 forks, 63 open issues and last shipped 4 days ago. Prometheus leads on adoption by 213% (66,906 vs 21,373 stars). Prometheus is written in Go under Apache-2.0; sonic is written in Rust under MPL-2.0. Prometheus has attracted 16% as many forks as stars, sonic 3%. 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.
← all 20902 open source comparisons
Side by side
| Prometheus | sonic | |
|---|---|---|
| GitHub stars | ★ 67K | ★ 21K |
| License | Apache-2.0 | MPL-2.0 |
| Written in | Go | Rust |
| Last push | 2026-11-02 | 2026-10-30 |
| Forks | ⑂ 11K | ⑂ 621 |
| 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 sonic if
- You want the sonic feature set and don't need the biggest community
- You prefer the MPL-2.0 license terms
- Your stack matches Rust
- You evaluated both and sonic 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 sonic
Sonic Sonic is a fast, lightweight and schema less search backend. It ingests search texts and identifier tuples that can then be queried against in a microsecond's time. Sonic can be used as a simple alternative to super heavy and full featured search backends such as Elasticsearch in some use cases. It is capable of normalizing natural language search queries, auto completing a search query and providing the most relevant results for a query. Sonic is an identifier index, rather than a document index; when queried, it returns IDs that can then be used to refer to the matched documents in an external database…
read the full sonic overview →
More in Infrastructure & Operations
Related comparisons
More Databases projects
Compare either of these against the rest of the Databases field.
Frequently asked questions
Is Prometheus or sonic more popular?
Prometheus has 66,906 GitHub stars and sonic has 21,373. Prometheus has the larger community by that measure.
Are Prometheus and sonic free?
Both are open source. Prometheus is licensed under Apache-2.0 and sonic under MPL-2.0. Neither carries a licence fee.
What is the difference between Prometheus and sonic?
Prometheus is written in Go and sonic 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, Prometheus or sonic?
Choose Prometheus if you want the larger community (66,906 stars) or its Apache-2.0 licence terms. Choose sonic if its feature set, stack or MPL-2.0 licence fits better. Both are self-hostable.