# @expo/metro-config > A Metro config for running React Native projects with the Metro bundler Latest version **57.0.12** (published 2026-08-28) · MIT license · 0 weekly downloads ## Install ```sh npm install @expo/metro-config pnpm add @expo/metro-config yarn add @expo/metro-config bun add @expo/metro-config ``` ## Health **Score 80/100 (A)** — status: active. Positive: has types; esm support; no vulnerabilities; recently updated; high maintenance score; high quality score; popular repo; extremely popular. Warnings: low downloads. ## Facts | | | |---|---| | Version | 57.0.12 | | Published | 2026-08-28 | | First published | 2020-04-06 | | Weekly downloads | 0 | | License | MIT | | TypeScript types | bundled | | Module format | ESM + CommonJS | | Dependencies | 23 | | Unpacked size | 975.9 KB | | Known vulnerabilities | 0 | | Install scripts | no | | GitHub stars | 52216 | | Maintainers | ide, brentvatne, expoadmin, exponent, bycedric, kudochien, alanhughes, tsapeta, expo-bot, philpl, ccheever, wschurman | | Keywords | expo, metro | ## Links - npm: https://www.npmjs.com/package/@expo/metro-config - Repository: https://github.com/expo/expo - Homepage: https://github.com/expo/expo/tree/main/packages/@expo/metro-config#readme - Issues: https://github.com/expo/expo/issues - npm.io page: https://npm.io/package/@expo/metro-config ## Dependencies (23) - [glob](https://npm.io/package/glob.md) ^13.0.0 - [chalk](https://npm.io/package/chalk.md) ^4.1.0 - [debug](https://npm.io/package/debug.md) ^4.3.2 - [getenv](https://npm.io/package/getenv.md) ^2.0.0 - [postcss](https://npm.io/package/postcss.md) ^8.5.14 - [@expo/env](https://npm.io/package/@expo/env.md) ~2.4.3 - [picomatch](https://npm.io/package/picomatch.md) ^4.0.4 - [@babel/core](https://npm.io/package/@babel/core.md) ^7.20.0 - [@expo/metro](https://npm.io/package/@expo/metro.md) ~56.0.2 - [@expo/config](https://npm.io/package/@expo/config.md) ~57.0.9 - [browserslist](https://npm.io/package/browserslist.md) ^4.25.0 - [jsc-safe-url](https://npm.io/package/jsc-safe-url.md) ^0.2.4 - [lightningcss](https://npm.io/package/lightningcss.md) ^1.30.1 - [resolve-from](https://npm.io/package/resolve-from.md) ^5.0.0 - [hermes-parser](https://npm.io/package/hermes-parser.md) ^0.36.0 - [@expo/json-file](https://npm.io/package/@expo/json-file.md) ~11.0.1 - [@babel/generator](https://npm.io/package/@babel/generator.md) ^7.20.5 - [@babel/code-frame](https://npm.io/package/@babel/code-frame.md) ^7.20.0 - [@expo/spawn-async](https://npm.io/package/@expo/spawn-async.md) ^1.8.0 - [@expo/require-utils](https://npm.io/package/@expo/require-utils.md) ^57.0.5 - [@jridgewell/remapping](https://npm.io/package/@jridgewell/remapping.md) ^2.3.5 - [@jridgewell/gen-mapping](https://npm.io/package/@jridgewell/gen-mapping.md) ^0.3.13 - [@jridgewell/sourcemap-codec](https://npm.io/package/@jridgewell/sourcemap-codec.md) ^1.5.5 ## Recent versions - 57.0.12 (latest) — 2026-08-28 - 58.0.1 (next) — 2026-09-14 - 58.0.0-canary-20260909-ea7a89a (canary) — 2026-09-09 - 56.0.19 (sdk-56) — 2026-08-28 - 55.0.27 (sdk-55) — 2026-08-25 - 54.0.17 (sdk-54) — 2026-07-15 - 56.0.14-canary-20260701-9100865 (canary-sdk-56) — 2026-07-01 - 55.0.10-canary-20260429-a5e59cf (canary-sdk-55) — 2026-04-29 - 0.20.18 (sdk-53) — 2025-12-11 - 0.18.4 (sdk-51) — 2024-05-16 - 0.17.6 (sdk-50) — 2024-03-07 - 0.1.57-alpha.0 (alpha) — 2021-03-03 - 58.0.0 — 2026-09-10 - 58.0.0-canary-20260902-26df09e — 2026-09-02 - 57.0.11 — 2026-08-26 - … 436 more at https://npm.io/package/@expo/metro-config/versions ## README # `@expo/metro-config` This package contains the default Metro config that is required for bundling apps with Expo CLI. Refer to the [Expo `metro.config.js` docs](https://docs.expo.dev/versions/latest/config/metro/) to learn more. `metro.config.js` ```js // Learn more https://docs.expo.io/guides/customizing-metro const { getDefaultConfig } = require('expo/metro-config'); /** @type {import('expo/metro-config').MetroConfig} */ const config = getDefaultConfig(__dirname); module.exports = config; ``` ## Exotic > As of SDK 51, the exotic transformer has been fully removed in favor of the default `@expo/metro-config` transformer. The export `@expo/metro-config/transformer` no longer exists. Most of the [Exotic mode](https://blog.expo.dev/drastically-faster-bundling-in-react-native-a54f268e0ed1) performance benefits have been integrated in the default Expo CLI bundling pipeline (e.g. [less AST cloning](https://github.com/facebook/metro/pull/854), [faster worker creation](https://github.com/facebook/metro/pull/856)), and as such, the feature no longer needs to be enabled/disabled. Setting `mode: "exotic"` will no longer have any additional effects over the default. Ensure you extend the `@expo/metro-config/babel-transformer` when customizing babel. Learn more: [Extending the Babel transformer](https://docs.expo.dev/versions/latest/config/metro/#extending-the-babel-transformer). --- _Source: https://npm.io/package/@expo/metro-config · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._