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Why Turbopack is Faster than Webpack

Why Turbopack is Faster than Webpack

Ankit Kumar / June 18, 2025

πŸš€ Why is Turbopack Faster than Webpack?

Turbopack is the next-gen bundler created by Vercel (the team behind Next.js) to replace Webpack. It’s optimized for speed, modern web features, and developer experience.


🧠 What Do Bundlers Like Webpack and Turbopack Do?

  • Analyze and bundle JS, CSS, images, etc.
  • Watch for file changes during development
  • Serve your app efficiently in the browser

⚑ Key Reasons Turbopack is Faster

1. πŸ¦€ Written in Rust (Not JavaScript)

  • Rust is a compiled, low-level systems language that's much faster than JavaScript.
  • Webpack is JS-based and slower for large builds.
  • Rust = Racecar, JS = Scooter πŸš—πŸ’¨

2. 🧩 Incremental Bundling

  • Only rebuilds changed files, not the whole app.
  • Super fast hot-reloads (1ms–100ms vs 500ms+ in Webpack).

3. πŸ“ On-Demand Compilation

  • Turbopack compiles only the routes/files requested by the browser.
  • Doesn't waste time compiling unused parts of the app.

Like a chef cooking just your order, not the whole menu.


4. 🌐 Optimized for Modern Features

  • Built with support for:
    • React Server Components (RSC)
    • Code Splitting
    • Streaming

Webpack supports these, but they weren’t designed into it from the start.


5. 🧠 Persistent Caching

  • Remembers previous builds and only rebuilds changed code.
  • Follow-up builds are almost instant.

πŸ†š Quick Comparison Table

πŸ› οΈ FeatureπŸš€ Turbopack🧱 Webpack
LanguageRust πŸ¦€JavaScript
Build StrategyIncremental & Lazy 🧩Full/Partial Rebuilds πŸ”
Compilation StyleOn-Demand πŸ“Eager (All at Once) ⏱️
Dev Speed⚑ Lightning Fast🐒 Slower
Modern Featuresβœ… First-class RSC & Streaming 🌐⚠️ Requires add-ons/plugins

βœ… Should You Use Turbopack?

If you’re:

  • Starting a new Next.js project
  • Not relying on custom Webpack plugins
  • Wanting super-fast dev experience

πŸ‘‰ Go for Turbopack!


πŸ’‘ Note: Turbopack is still in beta, but it's getting better fast and will soon become the default.