# Metro

- **Canonical URI:** https://www.vioscale.ai/software/metro
- **Category:** Bundlers
- **Homepage:** https://metrobundler.dev
- **Also known as:** metro
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-26T19:18:42.739Z

## Vioscale score

**71 / 100**, confidence 21% (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 | 70.7 | 0.026 | 1.8 | ✓ |
| integrations | 0 | 0.07033333333333334 | 0 | - |
| dependent_projects | 91.4 | 0.063 | 5.8 | ✓ |
| dev_activity | 53.8 | 0.094 | 5.1 | ✓ |
| release_cadence | 93.9 | 0.052 | 4.9 | ✓ |
| security_posture | 0 | 0.073 | 0 | - |
| package_downloads | 0 | 0.136 | 0 | - |
| security_score | 51 | 0.042 | 2.1 | ✓ |
| community_qa_activity | 0 | 0.063 | 0 | - |

## Pricing

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

Open source · Free tier

## About

Optimized JavaScript bundler for React Native that prioritizes rapid feedback cycles and supports large-scale projects with thousands of modules.

_Independently observed._

## Platform & deployment

- **Platforms:** CLI
- **Deployment:** Self-hosted

## Release history

| Version | Date | Type |
|---|---|---|
| [v0.84.5](https://github.com/react/metro/releases/tag/v0.84.5) | 2026-08-19 | stable |
| [v0.83.8](https://github.com/react/metro/releases/tag/v0.83.8) | 2026-08-19 | stable |
| [v0.87.0](https://github.com/react/metro/releases/tag/v0.87.0) | 2026-07-13 | stable |
| [v0.86.0](https://github.com/react/metro/releases/tag/v0.86.0) | 2026-07-06 | stable |
| [v0.85.0](https://github.com/react/metro/releases/tag/v0.85.0) | 2026-06-23 | stable |
| [v0.84.4](https://github.com/react/metro/releases/tag/v0.84.4) | 2026-04-30 | stable |
| [v0.83.7](https://github.com/react/metro/releases/tag/v0.83.7) | 2026-04-29 | stable |
| [v0.83.6](https://github.com/react/metro/releases/tag/v0.83.6) | 2026-04-13 | stable |
| [v0.84.3](https://github.com/react/metro/releases/tag/v0.84.3) | 2026-04-13 | stable |
| [v0.83.5](https://github.com/react/metro/releases/tag/v0.83.5) | 2026-03-01 | stable |
| [v0.84.2](https://github.com/react/metro/releases/tag/v0.84.2) | 2026-02-27 | stable |
| [v0.84.1](https://github.com/react/metro/releases/tag/v0.84.1) | 2026-02-25 | stable |
| [v0.84.0](https://github.com/react/metro/releases/tag/v0.84.0) | 2026-02-20 | stable |
| [v0.83.4](https://github.com/react/metro/releases/tag/v0.83.4) | 2026-02-20 | stable |
| [v0.83.3](https://github.com/react/metro/releases/tag/v0.83.3) | 2025-10-01 | 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=npm&package_name=metro-minify-uglify&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.

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 50 | [link](https://github.com/facebook/metro/pulse) | 2026-08-26 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 5,627 | [link](https://github.com/facebook/metro) | 2026-08-26 | 90% (high) |
| adoption.dependent_repos | 305,465 | [link](https://packages.ecosyste.ms/api/v1/packages/lookup?repository_url=https%3A%2F%2Fgithub.com%2Ffacebook%2Fmetro) | 2026-08-26 | 85% (high) |

### language

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

### license

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

### release

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| release.cadence_days | 11 | [link](https://github.com/facebook/metro/releases) | 2026-08-26 | 70% (medium) |

### pricing

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

### security

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| security.scorecard | 5.1 | [link](https://api.securityscorecards.dev/projects/github.com/facebook/metro) | 2026-08-26 | 90% (high) |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=metro-minify-uglify&per_page=100","last_12m":0,"max_severity":null}` | [link](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=metro-minify-uglify&per_page=100) | 2026-08-26 | 90% (high) |

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