head to head · open source
Vector vs swift-metrics
Vector has 22,799 GitHub stars, 2,370 forks, 2,512 open issues and last shipped yesterday. swift-metrics has 798 stars, 83 forks, 8 open issues and last shipped 8 days ago. Vector leads on adoption by 2,757% (22,799 vs 798 stars). Vector is written in Rust under MPL-2.0; swift-metrics is written in Swift under Apache-2.0. Vector has attracted 10% as many forks as stars, swift-metrics 10%. Vector was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (metrics), 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
| Vector | swift-metrics | |
|---|---|---|
| GitHub stars | ★ 23K | ★ 798 |
| License | MPL-2.0 | Apache-2.0 |
| Written in | Rust | Swift |
| Last push | 2026-11-04 | 2026-10-28 |
| Forks | ⑂ 2.4K | ⑂ 83 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Vector if
- You weight community size — 23K stars and counting
- You want the MPL-2.0 license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick swift-metrics if
- You want the swift-metrics feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Swift
- You evaluated both and swift-metrics fits your workflow better
About Vector
Quickstart • Docs • Guides • Integrations • Chat • Download • Container Images • Rust Crate Docs What is Vector? Vector is a high performance, end to end (agent & aggregator) observability data pipeline that puts you in control of your observability data. [Collect][docs.sources], [transform][docs.transforms], and [route][docs.sinks] all your logs and metrics to any vendors you want today and any other vendors you may want tomorrow. Vector enables dramatic cost reduction, novel data enrichment, and data security where you need it, not where it is most convenient for your…
read the full Vector overview →
About swift-metrics
SwiftMetrics A Metrics API package for Swift. Almost all production server software needs to emit metrics information for observability. Because it's unlikely that all parties can agree on one specific metrics backend implementation, this API is designed to establish a standard that can be implemented by various metrics libraries which then post the metrics data to backends like Prometheus, Graphite, publish over statsd, write to disk, etc. This is the beginning of a community driven open source project actively seeking contributions, be it code, documentation, or ideas. Apart from contributing to SwiftMetrics…
read the full swift-metrics overview →
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Frequently asked questions
Is Vector or swift-metrics more popular?
Vector has 22,799 GitHub stars and swift-metrics has 798. Vector has the larger community by that measure.
Are Vector and swift-metrics free?
Both are open source. Vector is licensed under MPL-2.0 and swift-metrics under Apache-2.0. Neither carries a licence fee.
What is the difference between Vector and swift-metrics?
Vector is written in Rust and swift-metrics in Swift. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Vector or swift-metrics?
Choose Vector if you want the larger community (22,799 stars) or its MPL-2.0 licence terms. Choose swift-metrics if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.