{"repo":"expo/atlas","free":true,"listed":false,"github":"https://github.com/expo/atlas","clone":"git clone https://github.com/expo/atlas.git","description":"Visualize React Native bundles to understand and optimize your app.","language":"TypeScript","stars":240,"topics":["analyzer","bundle","explorer","expo","react-native","sourcemap","metro","visualizer"],"license":null,"category":"mobile-apps","readme_excerpt":"Expo Atlas Inspect your Metro bundle, on module level. 🚀 How to use it Atlas is built into Expo starting from SDK 51, and enabled when defining the environment variable EXPO UNSTABLE ATLAS=true . You can use Atlas with two Expo commands: - $ expo start → Start a local dev server, Atlas will listen to any change within your project. - $ expo export → Export your app to Android, iOS, or web. Atlas will generate the atlas.jsonl file. Using $ expo start When enabling Atlas with the local dev server, you can access Atlas on http://localhost:8081/ expo/atlas. This shows you all information from the bundle loaded during development. [!TIP] Expo start runs in development mode by default. If you want to see a production bundle of your app, you can start the local dev server in production mode: $ expo start --no-dev . Using $ expo export When enabling Atlas during exports, Expo generates the .expo/atlas.json file in your project. This file contains all bundle information, including the actual source code of individual files. You can open the Atlas file through npx expo-atlas [path/to/atlas.jsonl] . 🏛️ Project structure - apps/example — A default Expo project, with Atlas enabled by default - packages/expo-atlas — The core package of Atlas, including Metro data handling and the CLI command - packages/expo-atlas-ui — The web-only Expo project representing the UI of Atlas 🧑‍💻 Contributing to Atlas Atlas is open source and contributions are welcome. 🏗️ Preparing the repository - Clone ","default_branch":null,"files":null,"tree":[],"storefront":"/r/expo","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/expo/atlas/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}