Compare Rolldown to these popular alternatives based on real-world usage and developer feedback.
A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows to load parts for the application on demand. Through "loaders" modules can be CommonJs, AMD, ES6 modules, CSS, Images, JSON, Coffeescript, LESS, ... and your custom stuff.

Build system automating tasks: minification and copying of all JavaScript files, static images. More capable of watching files to automatically rerun the task when a file changes.

The less work you have to do when performing repetitive tasks like minification, compilation, unit testing, linting, etc, the easier your job becomes. After you've configured it, a task runner can do most of that mundane work for you—and your team—with basically zero effort.

It is a module bundler for JavaScript which compiles small pieces of code into something larger and more complex, such as a library or application. It uses the new standardized format for code modules included in the ES6 revision of JavaScript, instead of previous idiosyncratic solutions such as CommonJS and AMD.

It is an opinionated web dev build tool that serves your code via native ES Module imports during dev and bundles it with Rollup for production.

Parcel is a web application bundler, differentiated by its developer experience. It offers blazing fast performance utilizing multicore processing, and requires zero configuration.

It is an extremely fast JavaScript and CSS bundler and minifier. Current build tools for the web are 10-100x slower than they could be. The main goal of this project is to bring about a new era of build tool performance, and create an easy-to-use modern bundler along the way.

Webpacker makes it easy to use the JavaScript preprocessor and bundler Webpack to manage application-like JavaScript in Rails. It coexists with the asset pipeline, as the purpose is only to use Webpack for app-like JavaScript, not images, css, or even JavaScript Sprinkles (that all continues to live in app/assets).

Brunch is an assembler for HTML5 applications. It's agnostic to frameworks, libraries, programming, stylesheet & templating languages and backend technology.

It is a high-performance build system for JavaScript and TypeScript codebases. It reimagines build system techniques used by Facebook and Google to remove maintenance burden and overhead.

It is a browser compilation library – an asset pipeline for applications that run in the browser.

Jetpack wraps webpack to create a smoother developer experience. Jetpack can be used instead of webpack, webpack-cli, webpack-dev-server and webpack-dev-middleware without writing any configuration. Jetpack is a thin wrapper around webpack, and can be extended with any of the webpack configuration.

It supports common CSS and JavaScript pre-processors like Sass and Webpack. Using method chaining, Elixir allows you to fluently define your asset pipeline

@pika/pack connects pre-configured plugins to build and optimize your package for you. Plugins wrap already-popular tools like Babel and Rollup with options already optimized for npm. This lets @pika/pack build your package without much (if any) configuration required on your part.

It is a lightning-fast frontend build tool, designed for the modern web. It is an alternative to heavier, more complex bundlers like webpack or Parcel in your development workflow.

It is a Universal Module Loader for JavaScript. If you've used RequireJs or a CommonJs bundler in the past, you have probably created modules.Configurable module loader enabling dynamic ES module workflows in browsers and NodeJS.

It is an experimental JavaScript toolchain. It includes a compiler, linter, formatter, bundler, testing framework and more. It aims to be a comprehensive tool for anything related to the processing of JavaScript source code.

Zero-configuration bundler for tiny modules, powered by Rollup.
It is a build task definition library. It stands on the shoulders of two excellent and well tested libraries: undertaker and yargs. It also provides what we call "stacks" to complete the workflow of building a repository.

Backpack is minimalistic build system for Node.js. Inspired by Facebook's create-react-app, Zeit's Next.js, and Remy's Nodemon, Backpack lets you create modern Node.js apps and services with zero configuration. Backpack handles all the file-watching, live-reloading, transpiling, and bundling, so you don't have to.

🚅 Fast: We aim for sub-second reload cycles, fast startup and quick bundling speeds. ⚖️ Scalable: Works with thousands of modules in a single application. ⚛️ Integrated: Supports every React Native project out of the box.

It is a collection of command line and JavaScript client utilities that make building, packaging, and sharing JavaScript applications easy.

Gulp and Grunt and other heavyweight build tools are great for complicated build workflows. Sometimes you want something simpler that doesn't take lots of configuration to get up and running. That's Pingy CLI.

Create a Maidfile and define bash or JavaScript tasks using Markdown.

Fly is a modern build system for Node based in co-routines, generators and promises. Fly has robust error handling, callback heaven, cascading tasks, parallel execution and a simple API. See the documentation to learn more about how to use Fly and write your own plugins.

Sagui is all about good defaults. It is the single development dependency you need to worry about, taking care of build, tests and the development server.

A build system and repo management tool for the web ecosystem (JavaScript, TypeScript, Go, Rust, etc), written in Rust.