Rollup
The JavaScript module bundler.
Overview
Rollup is a module bundler for JavaScript that specializes in creating smaller, faster, and simpler code. It analyzes the code you are importing and excludes anything that isn't actually used, a process known as tree-shaking. This makes it particularly well-suited for building JavaScript libraries and packages, as it results in lightweight and efficient bundles. Rollup uses the standardized ES module format and can output bundles in various formats, including CommonJS, AMD, and UMD.
✨ Key Features
- Tree-shaking for dead code elimination
- ES Module-native
- Code splitting
- Supports multiple output formats (CJS, AMD, ES, UMD)
- Plugin-based architecture
🎯 Key Differentiators
- Superior tree-shaking capabilities
- Simpler configuration compared to Webpack
- Focus on ES modules for efficient code
Unique Value: Creates the smallest and most efficient bundles possible, especially for JavaScript libraries, through its advanced tree-shaking and focus on ES modules.
🎯 Use Cases (3)
✅ Best For
- Creating distributable JavaScript libraries
- Bundling components for frameworks like React, Vue, and Svelte
💡 Check With Vendor
Verify these considerations match your specific requirements:
- Projects with extensive non-JavaScript assets that require complex loader configurations (Webpack might be a better fit)
- Applications that rely heavily on CommonJS modules without a proper plugin setup
🏆 Alternatives
Compared to Webpack, Rollup is often simpler to configure and produces smaller bundles for library code. While Vite offers a faster development experience, it uses Rollup under the hood for its production builds, highlighting Rollup's strength in optimization.
💻 Platforms
✅ Offline Mode Available
🔌 Integrations
💰 Pricing
Free tier: N/A (Open Source)
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