rollup vs webpack vs gulp vs browserify vs grunt vs parcel
JavaScript Module Bundlers and Task Runners Comparison
1 Year
rollupwebpackgulpbrowserifygruntparcel
What's JavaScript Module Bundlers and Task Runners?

JavaScript module bundlers and task runners are essential tools in modern web development that help manage and optimize the workflow of building applications. They allow developers to bundle JavaScript files, manage dependencies, and automate repetitive tasks such as minification, transpilation, and live reloading. These tools enhance the development experience by improving performance, reducing load times, and ensuring that applications are modular and maintainable. Each tool has its unique features and use cases, making it crucial for developers to choose the right one based on their project requirements and team preferences.

NPM Package Downloads Trend
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Package
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Size
Issues
Publish
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rollup27,543,20025,5492.61 MB5834 days agoMIT
webpack26,780,58764,9665.21 MB2582 months agoMIT
gulp1,412,96633,05411.2 kB3310 months agoMIT
browserify1,349,22114,638363 kB3954 months agoMIT
grunt708,93412,26468.3 kB1612 years agoMIT
parcel190,47743,60143.9 kB630a month agoMIT
Feature Comparison: rollup vs webpack vs gulp vs browserify vs grunt vs parcel

Bundling Approach

  • rollup:

    Rollup focuses on ES module bundling and tree-shaking, producing smaller and more optimized bundles by removing unused code.

  • webpack:

    Webpack is highly configurable and supports various module formats, allowing for complex bundling scenarios and optimizations.

  • gulp:

    Gulp uses a streaming approach to bundle files, allowing for more efficient processing and better performance during the build process.

  • browserify:

    Browserify allows you to use Node.js-style require() calls in your browser code, enabling a straightforward bundling process for CommonJS modules.

  • grunt:

    Grunt does not bundle files directly; instead, it automates tasks that can include bundling through plugins, making it more of a task runner than a bundler.

  • parcel:

    Parcel automatically bundles your files without requiring configuration, making it user-friendly and efficient for smaller projects.

Configuration Complexity

  • rollup:

    Rollup requires some configuration, especially for plugins and optimizations, but it is generally simpler than Webpack.

  • webpack:

    Webpack has a steep learning curve due to its extensive configuration options, but it offers unparalleled flexibility and power for complex applications.

  • gulp:

    Gulp's configuration is more straightforward as it uses JavaScript code, allowing for a more programmatic approach to defining tasks.

  • browserify:

    Browserify requires minimal configuration, making it easy to set up for projects that use CommonJS modules.

  • grunt:

    Grunt relies heavily on configuration files, which can become complex and verbose as the project grows, requiring more maintenance.

  • parcel:

    Parcel is designed to work out of the box with zero configuration, making it ideal for developers who want to get started quickly without setup overhead.

Performance

  • rollup:

    Rollup generates highly optimized bundles with tree-shaking capabilities, resulting in smaller file sizes and faster load times for applications.

  • webpack:

    Webpack can be optimized for performance, but its initial setup may lead to longer build times without proper configuration. However, it excels in handling large applications with complex dependencies.

  • gulp:

    Gulp is known for its speed due to its streaming build system, which processes files in memory and can handle large projects efficiently.

  • browserify:

    Browserify can be slower for larger projects due to its single-threaded nature and the way it processes modules, but it is efficient for smaller applications.

  • grunt:

    Grunt can be slower than other tools because it runs tasks sequentially, which may lead to longer build times for larger projects.

  • parcel:

    Parcel is designed for speed and automatically optimizes builds, making it one of the fastest bundlers available, especially for smaller projects.

Ecosystem and Community

  • rollup:

    Rollup has a dedicated community focused on module bundling, especially for libraries, and it supports various plugins for extended functionality.

  • webpack:

    Webpack has a large and active community, with extensive documentation and a rich ecosystem of plugins and loaders, making it the go-to choice for many developers.

  • gulp:

    Gulp has a strong community and a rich ecosystem of plugins, allowing for extensive customization and functionality in build processes.

  • browserify:

    Browserify has a smaller ecosystem compared to others, but it integrates well with Node.js libraries and has a dedicated community.

  • grunt:

    Grunt has a vast ecosystem of plugins, making it versatile for various tasks, but its popularity has declined in favor of newer tools.

  • parcel:

    Parcel is gaining popularity for its simplicity and ease of use, and its community is growing rapidly, leading to more plugins and resources.

Learning Curve

  • rollup:

    Rollup has a moderate learning curve, especially for those unfamiliar with ES modules and tree-shaking concepts.

  • webpack:

    Webpack has a steep learning curve due to its complexity and configuration options, but it offers powerful features for those willing to invest the time.

  • gulp:

    Gulp is relatively easy to learn, especially for developers familiar with JavaScript, as it allows for a more intuitive task definition using code.

  • browserify:

    Browserify has a gentle learning curve, especially for developers familiar with Node.js and CommonJS modules.

  • grunt:

    Grunt can have a steep learning curve due to its configuration-heavy approach, which may be overwhelming for newcomers.

  • parcel:

    Parcel is designed to be user-friendly with little to no configuration, making it ideal for beginners and quick projects.

How to Choose: rollup vs webpack vs gulp vs browserify vs grunt vs parcel
  • rollup:

    Choose Rollup if you are focused on creating libraries or applications that require tree-shaking to eliminate dead code. Rollup excels in producing optimized bundles for ES modules.

  • webpack:

    Choose Webpack if you need a powerful and flexible bundler that supports complex configurations and advanced features like code splitting, hot module replacement, and asset management. It's suitable for large-scale applications.

  • gulp:

    Choose Gulp if you favor a code-over-configuration approach and want to create build processes using JavaScript code. Gulp is known for its speed and simplicity in defining streaming build processes.

  • browserify:

    Choose Browserify if you need a simple solution for bundling JavaScript modules using the CommonJS module system, especially for projects that prioritize compatibility with Node.js-style modules.

  • grunt:

    Choose Grunt if you prefer a configuration-driven approach to task automation and need a wide variety of plugins for different tasks. It's suitable for projects where you want to define tasks in a clear and organized manner.

  • parcel:

    Choose Parcel if you want a zero-configuration bundler that automatically handles dependencies and optimizations. It's ideal for quick prototypes or projects where you want to minimize setup time.

README for rollup

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Rollup

Overview

Rollup 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 standardized ES module format for code, instead of previous idiosyncratic solutions such as CommonJS and AMD. ES modules let you freely and seamlessly combine the most useful individual functions from your favorite libraries. Rollup can optimize ES modules for faster native loading in modern browsers, or output a legacy module format allowing ES module workflows today.

Quick Start Guide

Install with npm install --global rollup. Rollup can be used either through a command line interface with an optional configuration file or else through its JavaScript API. Run rollup --help to see the available options and parameters. The starter project templates, rollup-starter-lib and rollup-starter-app, demonstrate common configuration options, and more detailed instructions are available throughout the user guide.

Commands

These commands assume the entry point to your application is named main.js, and that you'd like all imports compiled into a single file named bundle.js.

For browsers:

# compile to a <script> containing a self-executing function
rollup main.js --format iife --name "myBundle" --file bundle.js

For Node.js:

# compile to a CommonJS module
rollup main.js --format cjs --file bundle.js

For both browsers and Node.js:

# UMD format requires a bundle name
rollup main.js --format umd --name "myBundle" --file bundle.js

Why

Developing software is usually easier if you break your project into smaller separate pieces, since that often removes unexpected interactions and dramatically reduces the complexity of the problems you'll need to solve, and simply writing smaller projects in the first place isn't necessarily the answer. Unfortunately, JavaScript has not historically included this capability as a core feature in the language.

This finally changed with ES modules support in JavaScript, which provides a syntax for importing and exporting functions and data so they can be shared between separate scripts. Most browsers and Node.js support ES modules. However, Node.js releases before 12.17 support ES modules only behind the --experimental-modules flag, and older browsers like Internet Explorer do not support ES modules at all. Rollup allows you to write your code using ES modules, and run your application even in environments that do not support ES modules natively. For environments that support them, Rollup can output optimized ES modules; for environments that don't, Rollup can compile your code to other formats such as CommonJS modules, AMD modules, and IIFE-style scripts. This means that you get to write future-proof code, and you also get the tremendous benefits of...

Tree Shaking

In addition to enabling the use of ES modules, Rollup also statically analyzes and optimizes the code you are importing, and will exclude anything that isn't actually used. This allows you to build on top of existing tools and modules without adding extra dependencies or bloating the size of your project.

For example, with CommonJS, the entire tool or library must be imported.

// import the entire utils object with CommonJS
var utils = require('node:utils');
var query = 'Rollup';
// use the ajax method of the utils object
utils.ajax('https://api.example.com?search=' + query).then(handleResponse);

But with ES modules, instead of importing the whole utils object, we can just import the one ajax function we need:

// import the ajax function with an ES import statement
import { ajax } from 'node:utils';

var query = 'Rollup';
// call the ajax function
ajax('https://api.example.com?search=' + query).then(handleResponse);

Because Rollup includes the bare minimum, it results in lighter, faster, and less complicated libraries and applications. Since this approach is based on explicit import and export statements, it is vastly more effective than simply running an automated minifier to detect unused variables in the compiled output code.

Compatibility

Importing CommonJS

Rollup can import existing CommonJS modules through a plugin.

Publishing ES Modules

To make sure your ES modules are immediately usable by tools that work with CommonJS such as Node.js and webpack, you can use Rollup to compile to UMD or CommonJS format, and then point to that compiled version with the main property in your package.json file. If your package.json file also has a module field, ES-module-aware tools like Rollup and webpack will import the ES module version directly.

Contributors

This project exists thanks to all the people who contribute. [Contribute]. . If you want to contribute yourself, head over to the contribution guidelines.

Backers

Thank you to all our backers! 🙏 [Become a backer]

Sponsors

Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [Become a sponsor]

Special Sponsor

TNG Logo

TNG has been supporting the work of Lukas Taegert-Atkinson on Rollup since 2017.

License

MIT