React Native Bundle Discovery
Visualize and analyze the JS bundle of your React Native app. Find heavy packages, duplicates and deprecated dependencies, and catch bundle size regressions in CI.
Interactive UI
Explore packages, modules and their source/bundled code in the browser, with a treemap and an "Imported by" graph for every module.
Optimization recommendations
Duplicates, deprecated, outdated and dev-only packages and more, ranked by estimated savings.
Why is this in my bundle?
See the shortest import chain to any package in your bundle.
CLI
List the heaviest packages and modules right in your terminal.
Bundle size checks in CI
Compare two reports in the UI or in CI and fail on bundle size regressions.
Works with your setup
Metro, Re.Pack (Rspack / Webpack), rnx-kit (esbuild) and React Native DevTools via Rozenite.