# Metro vs Rspack

| Attribute | Metro | Rspack |
|---|---|---|
| **Vioscale score** | 71 (21% (low)) | 54.5 (23% (low)) |
| activity.commits_last_30d | 50 | 100 |
| adoption.dependent_repos | 305,465 | 14 |
| adoption.github_stars | 5,627 | 12,872 |
| deployment.options | `{"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | Optimized JavaScript bundler for React Native that prioritizes rapid feedback cycles and supports large-scale projects with thousands of modules. | Rspack is a bundler designed for web applications that replaces webpack with faster build speeds and incremental compilation. It maintains webpack API compatibility while delivering performance improvements for local development and production builds. |
| integrations.count | - | 14 |
| integrations.list | - | `[{"name":"Rsbuild"},{"name":"Rslib"},{"name":"Rstest"},{"name":"Rslint"},{"name":"Docusaurus"},{"name":"Modern.js"},{"name":"Meteor"},{"name":"Next.js"},{"name":"Nuxt"},{"name":"Nx"},{"name":"React Native"},{"name":"Storybook"},{"name":"TanStack Router"},{"name":"TanStack Start"}]` |
| language.primary | JavaScript | Rust |
| license.spdx | MIT | MIT |
| platform.support | `{"cli":true}` | `{"cli":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://metrobundler.dev","retrievedAt":"2026-08-20T16:36:51.300Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://rspack.dev","retrievedAt":"2026-08-20T16:29:35.188Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| release.cadence_days | 11 | 4 |
| release.history | `[{"url":"https://github.com/react/metro/releases/tag/v0.84.5","date":"2026-08-19T15:29:25Z","type":"stable","version":"v0.84.5"},{"url":"https://github.com/react/metro/releases/tag/v0.83.8","date":"2026-08-19T15:21:23Z","type":"stable","version":"v0.83.8"},{"url":"https://github.com/react/metro/releases/tag/v0.87.0","date":"2026-07-13T15:23:08Z","type":"stable","version":"v0.87.0"},{"url":"https://github.com/react/metro/releases/tag/v0.86.0","date":"2026-07-06T16:46:29Z","type":"stable","version":"v0.86.0"},{"url":"https://github.com/react/metro/releases/tag/v0.85.0","date":"2026-06-23T16:07:47Z","type":"stable","version":"v0.85.0"},{"url":"https://github.com/react/metro/releases/tag/v0.84.4","date":"2026-04-30T11:39:20Z","type":"stable","version":"v0.84.4"},{"url":"https://github.com/react/metro/releases/tag/v0.83.7","date":"2026-04-29T10:46:10Z","type":"stable","version":"v0.83.7"},{"url":"https://github.com/react/metro/releases/tag/v0.83.6","date":"2026-04-13T17:00:24Z","type":"stable","version":"v0.83.6"},{"url":"https://github.com/react/metro/releases/tag/v0.84.3","date":"2026-04-13T16:04:32Z","type":"stable","version":"v0.84.3"},{"url":"https://github.com/react/metro/releases/tag/v0.83.5","date":"2026-03-01T16:15:07Z","type":"stable","version":"v0.83.5"},{"url":"https://github.com/react/metro/releases/tag/v0.84.2","date":"2026-02-27T17:48:20Z","type":"stable","version":"v0.84.2"},{"url":"https://github.com/react/metro/releases/tag/v0.84.1","date":"2026-02-25T15:02:37Z","type":"stable","version":"v0.84.1"},{"url":"https://github.com/react/metro/releases/tag/v0.84.0","date":"2026-02-20T20:49:15Z","type":"stable","version":"v0.84.0"},{"url":"https://github.com/react/metro/releases/tag/v0.83.4","date":"2026-02-20T03:41:11Z","type":"stable","version":"v0.83.4"},{"url":"https://github.com/react/metro/releases/tag/v0.83.3","date":"2025-10-01T12:22:13Z","type":"stable","version":"v0.83.3"},{"url":"https://github.com/react/metro/releases/tag/v0.83.2","date":"2025-09-18T16:05:59Z","type":"stable","version":"v0.83.2"},{"url":"https://github.com/react/metro/releases/tag/v0.83.1","date":"2025-07-24T14:02:11Z","type":"stable","version":"v0.83.1"},{"url":"https://github.com/react/metro/releases/tag/v0.83.0","date":"2025-07-13T11:12:43Z","type":"stable","version":"v0.83.0"},{"url":"https://github.com/react/metro/releases/tag/v0.82.5","date":"2025-07-06T08:13:15Z","type":"stable","version":"v0.82.5"},{"url":"https://github.com/react/metro/releases/tag/v0.82.4","date":"2025-05-21T17:08:59Z","type":"stable","version":"v0.82.4"}]` | `[{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.2.0","date":"2026-08-26T03:42:56Z","type":"stable","version":"v2.2.0"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.2.0-rc.0","date":"2026-08-21T10:49:42Z","type":"prerelease","version":"v2.2.0-rc.0"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.2.0-beta.1","date":"2026-08-18T10:15:58Z","type":"prerelease","version":"v2.2.0-beta.1"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.1.10","date":"2026-08-13T10:32:13Z","type":"stable","version":"v2.1.10"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.1.9","date":"2026-08-11T15:43:55Z","type":"stable","version":"v2.1.9"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.1.8","date":"2026-08-04T11:09:32Z","type":"stable","version":"v2.1.8"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.1.7","date":"2026-07-29T09:21:11Z","type":"stable","version":"v2.1.7"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.1.6","date":"2026-07-28T09:04:39Z","type":"stable","version":"v2.1.6"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.1.5","date":"2026-07-21T11:56:09Z","type":"stable","version":"v2.1.5"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.1.4","date":"2026-07-14T14:10:08Z","type":"stable","version":"v2.1.4"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.1.3","date":"2026-07-07T08:30:54Z","type":"stable","version":"v2.1.3"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.1.2","date":"2026-06-30T08:25:25Z","type":"stable","version":"v2.1.2"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.1.1","date":"2026-06-27T03:27:12Z","type":"stable","version":"v2.1.1"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.1.0","date":"2026-06-26T08:59:18Z","type":"stable","version":"v2.1.0"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.1.0-rc.0","date":"2026-06-23T11:13:16Z","type":"stable","version":"v2.1.0-rc.0"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.1.0-beta.0","date":"2026-06-18T08:35:22Z","type":"stable","version":"v2.1.0-beta.0"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v1.7.12","date":"2026-06-17T12:44:37Z","type":"stable","version":"v1.7.12"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.0.8","date":"2026-06-10T16:03:28Z","type":"stable","version":"v2.0.8"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.0.7","date":"2026-06-10T15:16:22Z","type":"stable","version":"v2.0.7"},{"url":"https://github.com/web-infra-dev/rspack/releases/tag/v2.0.6","date":"2026-06-02T09:48:56Z","type":"stable","version":"v2.0.6"}]` |
| security.scorecard | 5.1 | - |
| 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}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40rspack%2Fbinding-linux-arm64-gnu&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Bundlers)

| Capability | Metro | Rspack |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Dev server hmr | - | - |
| Native esm dev | - | - |
| Code splitting | - | - |
| Tree shaking | - | - |
| Css bundling | - | - |
| Zero config | - | - |
| Webpack plugin compat | - | - |
| Rollup plugin compat | - | - |
| Monorepo aware | - | - |
| Source maps | - | - |

*Source: Vioscale. Generated 2026-09-01T17:06:56.940Z. "-" = undocumented, not absent.*