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Performance optimization recommended

Bundle Size Optimization

Code splitting, tree shaking, dynamic imports, bundle analysis, and dependency optimization for smaller JavaScript bundles.

Difficulty
intermediate
Read time
1 min read
Version
v1.0.0
Confidence
established
Last updated

Quick Reference

Analyze bundle with @next/bundle-analyzer. Import specific functions (lodash/debounce not lodash). Use dynamic() for heavy components. Route-based splitting is automatic in Next.js. Avoid barrel exports. Use lighter alternatives (date-fns over moment). Target < 200KB initial JS.

Use When

  • Reducing JavaScript bundle size
  • Improving initial page load
  • Analyzing bundle composition
  • Optimizing dependencies

Skip When

  • Server-only code
  • Build-time scripts

Bundle Size Optimization

Code splitting, tree shaking, dynamic imports, bundle analysis, and dependency optimization for smaller JavaScript bundles.

Tags

performance bundle-size code-splitting tree-shaking optimization

Discussion