head to head · open source
Prometheus vs sled
Prometheus has 66,906 GitHub stars, 10,969 forks, 890 open issues and last shipped yesterday. sled has 9,104 stars, 429 forks, 172 open issues and last shipped 7 months ago. Prometheus leads on adoption by 635% (66,906 vs 9,104 stars). Prometheus is written in Go under Apache-2.0; sled is written in Rust under Apache-2.0. Prometheus has attracted 16% as many forks as stars, sled 5%. 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 | sled | |
|---|---|---|
| GitHub stars | ★ 67K | ★ 9.1K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | Rust |
| Last push | 2026-11-02 | 2026-04-04 |
| Forks | ⑂ 11K | ⑂ 429 |
| 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 sled if
- You want the sled 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 sled 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 sled
key value documentation chat about databases with us sled it's all downhill from here!!! An embedded database. $${\color{red}This \space README \space is \space out \space of \space sync \space with \space the \space main \space branch \space which \space contains \space a \space large \space in progress \space rewrite }$$ If you would like to work with structured data without paying expensive deserialization costs, check out the structured example! features API similar to a threadsafe BTreeMap serializable (ACID) transactions for atomically reading and writing to multiple keys in multiple keyspaces. fully…
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 sled more popular?
Prometheus has 66,906 GitHub stars and sled has 9,104. Prometheus has the larger community by that measure.
Are Prometheus and sled free?
Both are open source. Prometheus is licensed under Apache-2.0 and sled under Apache-2.0. Neither carries a licence fee.
What is the difference between Prometheus and sled?
Prometheus is written in Go and sled 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 sled?
Choose Prometheus if you want the larger community (66,906 stars) or its Apache-2.0 licence terms. Choose sled if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.