Rollup

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

26309 stars · 1782 forks observed · 2026-09-27

What it is AI-extracted, prompt v1, taxonomy v1, 2026-10-12, confidence 0.99

Rollup is a JavaScript module bundler that compiles small pieces of code into larger, optimized bundles. It uses the standardized ES module format and offers powerful plugins for custom build flows.

Use cases

• bundle a library for distribution as an ES module or UMD package
• create a production‑ready JavaScript bundle for a web application
• perform tree‑shaking to remove dead code from a project
• split code into multiple chunks for lazy loading in the browser
• integrate Babel, TypeScript, or other preprocessors into the build pipeline
• watch source files and automatically rebuild during development

When to choose

• You need fine‑grained control over bundle output formats (ESM, CJS, UMD, IIFE).
• Your project relies heavily on ES modules and you want optimal tree‑shaking.
• You want a flexible plugin system to customize the build process.

When to avoid

• You prefer a zero‑config dev server with built‑in bundling (e.g., Vite) for rapid prototyping.
• Your build targets are primarily non‑JavaScript assets where a dedicated asset pipeline is required.
• You need a bundler with extensive out‑of‑the‑box support for frameworks like React without additional configuration.

Facets

library · maturity active

build-tool cli plugin-system web-development frontend backend cli browser es-modules tree-shaking code-splitting plugin-api bundle-optimisation nodejs

Member repositories

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markdown · JSON · MCP: product_card(name="rollup/rollup")