head to head · open source
Vector vs PhpMetrics
Vector has 22,589 GitHub stars, 2,286 forks, 2,512 open issues and last shipped 2 days ago. PhpMetrics has 2,612 stars, 261 forks, 4 open issues and last shipped 1 months ago. Vector leads on adoption by 765% (22,589 vs 2,612 stars). Vector is written in Rust under MPL-2.0; PhpMetrics is written in PHP under MIT. Vector has attracted 10% as many forks as stars, PhpMetrics 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 | PhpMetrics | |
|---|---|---|
| GitHub stars | ★ 23K | ★ 2.6K |
| License | MPL-2.0 | MIT |
| Written in | Rust | PHP |
| Last push | 2026-09-18 | 2026-08-21 |
| Forks | ⑂ 2.3K | ⑂ 261 |
| 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 PhpMetrics if
- You want the PhpMetrics feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches PHP
- You evaluated both and PhpMetrics fits your workflow better
About Vector
Vector is an open source observability data pipeline written in Rust and licensed under MPL 2.0. It operates as an end to end system for collecting, transforming, and routing logs and metrics within the cloud native monitoring ecosystem. The project is maintained by Datadog's Community Open Source Engineering team, and its topics include agent, cloud native, data transformation, datadog, etl, events, forwarder, logs, metrics, and monitoring.
read the full Vector overview →
About PhpMetrics
PhpMetrics is an MIT licensed static analysis tool for PHP, distributed through Composer as phpmetrics/phpmetrics , that computes metrics about a PHP project and its classes and renders them as an HTML report for developers, tech leads, and CI pipelines that need visible code quality data.
read the full PhpMetrics overview →
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Frequently asked questions
Is Vector or PhpMetrics more popular?
Vector has 22,589 GitHub stars and PhpMetrics has 2,612. Vector has the larger community by that measure.
Are Vector and PhpMetrics free?
Both are open source. Vector is licensed under MPL-2.0 and PhpMetrics under MIT. Neither carries a licence fee.
What is the difference between Vector and PhpMetrics?
Vector is written in Rust and PhpMetrics in PHP. 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 PhpMetrics?
Choose Vector if you want the larger community (22,589 stars) or its MPL-2.0 licence terms. Choose PhpMetrics if its feature set, stack or MIT licence fits better. Both are self-hostable.