callstack/react-native-bundle-visualizer

Health v2 · maintenance only

Adoption not part of the score

1631 stars · 50 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A CLI tool that visualizes the contents of a React Native JavaScript bundle using source-map-explorer on Metro bundler output. It helps developers identify which packages or libraries are inflating their app's bundle size.

Use cases

• find out which npm packages are making my react-native bundle huge
• visualize react-native bundle size breakdown
• reduce app loading time by identifying heavy javascript dependencies
• analyze bundle size for an expo project
• see what's inside my metro bundler output
• compare bundle size before and after removing a library

When to choose

• you develop React Native or Expo apps and want to optimize bundle size
• you need a quick npx-runnable analysis without project configuration
• you want a visual treemap of which dependencies contribute most bytes

When to avoid

• you need bundle analysis for plain web apps (use webpack-bundle-analyzer instead)
• you need native binary size analysis rather than JavaScript bundle analysis
• your project does not use Metro as its bundler

Facets

cli-tool · maturity active

developer-tools build-tool data-visualization developer-tools mobile-development frontend cli cross-platform react-native expo bundle-size source-map-explorer metro-bundler performance nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="callstack/react-native-bundle-visualizer")