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Why Turbopack is Faster than Webpack
Ankit Kumar / June 18, 2025
π Why is Turbopack Faster than Webpack?
Turbopack is the next-gen bundler created by Vercel (the team behind Next.js) to replace Webpack. Itβs optimized for speed, modern web features, and developer experience.
π§ 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
β‘ Key Reasons Turbopack is Faster
1. π¦ 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 ππ¨
2. π§© Incremental Bundling
- Only rebuilds changed files, not the whole app.
- Super fast hot-reloads (1msβ100ms vs 500ms+ in Webpack).
3. π 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. π Optimized for Modern Features
- Built with support for:
- React Server Components (RSC)
- Code Splitting
- Streaming
Webpack supports these, but they werenβt designed into it from the start.
5. π§ Persistent Caching
- Remembers previous builds and only rebuilds changed code.
- Follow-up builds are almost instant.
π Quick Comparison Table
π οΈ Feature | π Turbopack | π§± Webpack |
---|---|---|
Language | Rust π¦ | JavaScript |
Build Strategy | Incremental & Lazy π§© | Full/Partial Rebuilds π |
Compilation Style | On-Demand π | Eager (All at Once) β±οΈ |
Dev Speed | β‘ Lightning Fast | π’ Slower |
Modern Features | β First-class RSC & Streaming π | β οΈ Requires add-ons/plugins |
β Should You Use Turbopack?
If youβre:
- Starting a new Next.js project
- Not relying on custom Webpack plugins
- Wanting super-fast dev experience
π Go for Turbopack!
π‘ Note: Turbopack is still in beta, but it's getting better fast and will soon become the default.