# MetalLB

- **Canonical URI:** https://www.vioscale.ai/software/metallb
- **Category:** Load Balancers
- **Homepage:** https://metallb.universe.tf
- **Also known as:** metallb
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-26T19:30:27.395Z

## Vioscale score

**45 / 100**, confidence 15% (low). Computed 2026-09-01. _(updating — computed under an earlier model version or past its freshness window.)_

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| capabilities | 0 | 0.07844444444444446 | 0 | - |
| repo_stars | 74 | 0.026 | 1.9 | ✓ |
| integrations | 0 | 0.07033333333333334 | 0 | - |
| dependent_projects | 35.9 | 0.063 | 2.3 | ✓ |
| dev_activity | 35.1 | 0.094 | 3.3 | ✓ |
| release_cadence | 0 | 0.052 | 0 | - |
| security_posture | 0 | 0.073 | 0 | - |
| package_downloads | 0 | 0.136 | 0 | - |
| security_score | 63 | 0.042 | 2.6 | ✓ |
| community_qa_activity | 0 | 0.063 | 0 | - |

## Pricing

_As of 2026-08-20, [verify at source](https://metallb.universe.tf). Independently observed._

Open source · Free tier

> Open source, free

## About

Provides network load balancing functionality for bare metal Kubernetes deployments that lack built-in cloud provider integrations, addressing the limitation that standard Kubernetes load balancers only work with cloud platforms.

_Independently observed._

## Platform & deployment
- **Deployment:** On-premise, Self-hosted

## Release history

| Version | Date | Type |
|---|---|---|
| [metallb-chart-0.16.1](https://github.com/metallb/metallb/releases/tag/metallb-chart-0.16.1) | 2026-05-27 | stable |
| [v0.16.0](https://github.com/metallb/metallb/releases/tag/v0.16.0) | 2026-05-20 | stable |
| [metallb-chart-0.16.0](https://github.com/metallb/metallb/releases/tag/metallb-chart-0.16.0) | 2026-05-20 | stable |
| [v0.15.3](https://github.com/metallb/metallb/releases/tag/v0.15.3) | 2025-12-04 | stable |
| [metallb-chart-0.15.3](https://github.com/metallb/metallb/releases/tag/metallb-chart-0.15.3) | 2025-12-04 | stable |
| [v0.15.2](https://github.com/metallb/metallb/releases/tag/v0.15.2) | 2025-06-04 | stable |
| [metallb-chart-0.15.2](https://github.com/metallb/metallb/releases/tag/metallb-chart-0.15.2) | 2025-06-04 | stable |
| [metallb-chart-0.15.1](https://github.com/metallb/metallb/releases/tag/metallb-chart-0.15.1) | 2025-06-04 | stable |
| [v0.15.0](https://github.com/metallb/metallb/releases/tag/v0.15.0) | 2025-06-03 | stable |
| [metallb-chart-0.15.0](https://github.com/metallb/metallb/releases/tag/metallb-chart-0.15.0) | 2025-06-03 | stable |
| [v0.14.9](https://github.com/metallb/metallb/releases/tag/v0.14.9) | 2024-12-17 | stable |
| [metallb-chart-0.14.9](https://github.com/metallb/metallb/releases/tag/metallb-chart-0.14.9) | 2024-12-17 | stable |
| [v0.14.8](https://github.com/metallb/metallb/releases/tag/v0.14.8) | 2024-07-23 | stable |
| [metallb-chart-0.14.8](https://github.com/metallb/metallb/releases/tag/metallb-chart-0.14.8) | 2024-07-23 | stable |
| [v0.14.7](https://github.com/metallb/metallb/releases/tag/v0.14.7) | 2024-07-16 | stable |

_… and 5 earlier release(s)._

## Security & compliance


Known vulnerabilities: 0 (0 in the last 12 months) ([source](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=go.universe.tf%2Fmetallb&per_page=100)). A count reflects scale and disclosure, not quality.

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.free_tier | yes | [link](https://metallb.universe.tf) | 2026-08-20 | 60% (medium) |
| pricing.model | open_source | [link](https://metallb.universe.tf) | 2026-08-20 | 60% (medium) |
| pricing.price_level | free | [link](https://metallb.universe.tf) | 2026-08-20 | 60% (medium) |

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 12 | [link](https://github.com/metallb/metallb/pulse) | 2026-08-26 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 8,333 | [link](https://github.com/metallb/metallb) | 2026-08-26 | 90% (high) |
| adoption.dependent_repos | 142 | [link](https://packages.ecosyste.ms/api/v1/packages/lookup?repository_url=https%3A%2F%2Fgithub.com%2Fmetallb%2Fmetallb) | 2026-08-26 | 85% (high) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | Go | [link](https://github.com/metallb/metallb) | 2026-08-26 | 90% (high) |

### license

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| license.spdx | Apache-2.0 | [link](https://github.com/metallb/metallb) | 2026-08-26 | 95% (high) |

### security

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| security.scorecard | 6.3 | [link](https://api.securityscorecards.dev/projects/github.com/metallb/metallb) | 2026-08-26 | 90% (high) |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=go.universe.tf%2Fmetallb&per_page=100","last_12m":0,"max_severity":null}` | [link](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=go.universe.tf%2Fmetallb&per_page=100) | 2026-08-26 | 90% (high) |

---
*Source: Vioscale (https://www.vioscale.ai/software/metallb). Independent, evidence-based software intelligence. Cite the canonical URI.*