react/metro

Health v2 · maintenance only

Adoption not part of the score

5627 stars · 692 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Metro is the JavaScript bundler for React Native, providing fast bundling, a transformer pipeline, and a development server with hot reloading. It ships with React Native by default and can also be used standalone via its CLI or programmatic API.

Use cases

• bundle javascript for react native apps
• run a dev server with fast refresh for react native
• build a production js bundle with source maps
• integrate a bundler middleware into an express server
• customize module resolution and transformation for react native
• serve bundles for thousands of modules in a large app

When to choose

• you are building or tooling a React Native application
• you need fast incremental bundling and hot reload for mobile JS
• you want a programmable bundler with resolver/transformer/serializer hooks

When to avoid

• you are bundling a plain web app where webpack, esbuild, or Vite fit better
• you need a general-purpose bundler outside the React Native ecosystem
• your project does not use Node.js-based tooling

Facets

cli-tool · maturity active

build-tool http-server middleware cli developer-tools mobile-development frontend developer-tools web-development cli cross-platform bundler react-native javascript-bundler module-bundler hot-reload dev-server source-maps transformer-pipeline javascript nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="react/metro")