See what's inside of your react-native bundle 📦
Uses the awesome webpack-visualizer and haul bundler.
Sometimes, importing a single javascript library can drastically increase your bundle size. This package helps you to identify such a library, so you can keep the bundle size low and loading times fast.
Requirements:
- Make sure you have node 8 or higher installed
- For react-native 0.48.x or lower, use react-native-bundle-visualizer@1.1.0
Install as a dev dependency:
yarn add --dev react-native-bundle-visualizer
And run it:
yarn run react-native-bundle-visualizer
or when using npm:
npm install --save-dev react-native-bundle-visualizer
./node_modules/.bin/react-native-bundle-visualizer
Additionally, add the haul generated files & folders to your .gitignore file:
# Haul bundler
/assets
stats.html
index.ios.bundle
index.ios.bundle.map
haul-debug.log
The sizes reported are an indication rather than the exact byte size in your bundle. This is because the Haul packager returns different bundles compared to the react-native Metro bundler. Also, due to limitations in webpack's stats, the "actual" (minified) numbers reported here are approximate, but they should be pretty close.