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rollup.js VS WebdriverIO

Compare rollup.js VS WebdriverIO and see what are their differences

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  3. » Reviews
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rollup.js logo rollup.js

Rollup is a module bundler for JavaScript which compiles small pieces of code into a larger piece such as application.

WebdriverIO logo WebdriverIO

Webdriver module for Node.js. that makes it easier to write Selenium tests
  • rollup.js Landing page
    Landing page //
    2023-02-09
  • WebdriverIO Landing page
    Landing page //
    2023-10-19

rollup.js features and specs

  • Tree Shaking
    Rollup.js performs treeshaking to eliminate dead code, resulting in smaller bundle sizes. It analyzes the dependency tree and includes only the parts of the code that are actually used.
  • Output Formats
    Supports multiple output formats including ES modules, CommonJS, AMD, UMD, and IIFE. This makes it versatile for different use cases.
  • Plugins
    Rollup.js has a rich ecosystem of plugins that extend its functionality, such as code transformation, minification, and support for various types of modules.
  • Code Splitting
    Supports code splitting, allowing you to break your code into smaller chunks that can be loaded on demand. This improves performance for larger projects.
  • Efficient Bundling
    Offers efficient bundling by removing duplicates and ensuring that each module gets included only once, which contributes to reduced bundle size.
  • Minimal Configuration
    Generally requires minimal configuration to get started, focusing on simplicity and ease of use.

Possible disadvantages of rollup.js

  • Learning Curve
    Although relatively simple to use, there is still a learning curve associated with understanding its configuration and the plugin system.
  • Initial Build Time
    The initial build time can be slower compared to some other bundlers, particularly for larger projects.
  • Limited Built-in Features
    Rollup.js focuses on being a minimalist tool, so it lacks some of the built-in features that other bundlers may have. Often, additional functionality needs to be added via plugins.
  • Plugin Compatibility
    Not all plugins work seamlessly with Rollup.js, and there may be occasional compatibility issues, especially with plugins originally designed for other bundlers.
  • Node.js Ecosystem
    While Rollup.js excels in bundling for browsers, it is not as commonly used for Node.js applications compared to other tools like Webpack.
  • Community Size
    The community size is smaller compared to other bundling tools like Webpack, which can sometimes make finding solutions to issues more challenging.

WebdriverIO features and specs

  • Multi-browser Support
    WebdriverIO provides extensive support for multiple browsers, including Chrome, Firefox, and Safari, making it versatile for cross-browser testing.
  • Rich Plug-in Ecosystem
    The framework has a robust plug-in system that allows users to customize and extend functionalities according to testing needs, enhancing flexibility.
  • Asynchronous Command Handling
    WebdriverIO handles commands asynchronously, which improves performance and allows better management of test execution flow.
  • Integrated Test Runner
    The built-in test runner simplifies the management of test suites, making it easier to manage and execute tests without needing additional tools.
  • Comprehensive Documentation
    WebdriverIO boasts extensive and detailed documentation, which aids developers in efficiently setting up and using the tool.

Possible disadvantages of WebdriverIO

  • Initial Learning Curve
    New users may experience a steep learning curve due to the framework's asynchronous behavior and JavaScript promises.
  • JavaScript Only
    Being JavaScript-centric, it may not be ideal for teams or projects that prefer or require using other programming languages exclusively.
  • Complex Configuration
    Setting up the framework and configuring it properly can be complex and time-consuming, particularly for developers new to WebDriver-based testing.
  • Frequent Updates
    While updates are generally beneficial, the frequent release of updates can lead to compatibility issues and require maintenance time to keep up.

Analysis of rollup.js

Overall verdict

  • Rollup.js is a highly recommended choice for projects where ES6 modules are extensively used, and the goal is to produce compact and clean output. It's particularly beneficial for library authors aiming to provide their libraries in multiple formats.

Why this product is good

  • Rollup.js is good due to its efficient bundling process that helps in creating smaller and faster JavaScript files. It uses ES6 modules which enable better tree shaking and helps in removing unused code, leading to cleaner and more optimized builds. Additionally, Rollup has a simple and modular architecture that can be extended with plugins to support various build processes and features.

Recommended for

  • JavaScript library authors
  • Developers prioritizing ES6 module syntax
  • Projects that require efficient tree shaking
  • Those needing a customizable and streamlined bundling process

rollup.js videos

No rollup.js videos yet. You could help us improve this page by suggesting one.

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WebdriverIO videos

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WebdriverIO Tutorial Series Review | #20

More videos:

  • Review - Test React Apps with WebdriverIO
  • Review - Get Started With WebdriverIO - WebdriverIO Wednesdays

Category Popularity

0-100% (relative to rollup.js and WebdriverIO)

rollup.js

WebdriverIO

Web Application Bundler
100 100%
Web Application Bundler
0% 0
Browser Testing
0 0%
Browser Testing
100% 100
JS Build Tools
100 100%
JS Build Tools
0% 0
Automated Testing
0 0%
Automated Testing
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare rollup.js and WebdriverIO

rollup.js Reviews

Rollup v. Webpack v. Parcel
Rollup provides much simpler configuration over webpack 4 and has a host of pre-configured plugins that are a breeze to incorporate into your project. Rollup's also the fastest of the build tools period.
Source: x-team.com

WebdriverIO Reviews

Top Selenium Alternatives
While WebDriverIO utilizes the Selenium WebDriver for cross-browser testing, it simplifies interaction by providing a more JavaScript-friendly API and a robust plugin system. This makes it more approachable for developers familiar with JavaScript ecosystems compared to the traditional, more language-agnostic Selenium WebDriver.
Source: bugbug.io

Social recommendations and mentions

Based on our record, rollup.js seems to be a lot more popular than WebdriverIO. While we know about 62 links to rollup.js, we've tracked only 2 mentions of WebdriverIO. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

rollup.js mentions (62)

  • JavaScript is so redundant
    Why are there so many JavaScript build tools? Gulp, Grunt, Webpack, Laravel Mix, Rollup.js, and now Vite. And these are just the ones that I've worked with. Haven't we solved this problem? And why build a new tool? Why not improve existing tools? - Source: dev.to / 5 days ago
  • ⚔️ Vite vs. Turbopack in 2025: Which One to Choose?
    Vite (pronounced veet) was created by Evan You (Vue's creator) and launched in 2020. It uses native ES modules in the browser and esbuild for lightning-fast dev servers and Rollup for optimized production builds. - Source: dev.to / 9 days ago
  • Valentine’s Day Breakup: React Dumps Create React App
    Vite is a modern frontend build tool used to develop fast and super efficient web applications. It serves files instantly and ensures that changes are updated immediately after they are implemented. It makes use of Rollup for optimized builds and has support for when you want to build a Javascript library (instead of a full app). - Source: dev.to / 2 months ago
  • Advanced Guide to Using Vite with React in 2025
    In 2025, mastering Vite for your React projects means leveraging powerful configurations, intelligent optimizations, and a robust plugin ecosystem. By understanding Vite’s modern architecture—native ES modules (ESM) during development and optimized Rollup bundling for production—you can significantly streamline your workflow, improve developer experience, and deliver fast, performant applications at scale. - Source: dev.to / 3 months ago
  • Optimizing React Development with Vite🤩.
    6. Production-Ready Code Vite uses Rollup for production builds, which optimizes the code by bundling it efficiently, performing tree shaking, and minifying JavaScript. This results in smaller, optimized production builds that are ready for deployment. - Source: dev.to / 6 months ago
View more

WebdriverIO mentions (2)

  • Node.js Packages and Resources
    WebdriverIO - Automated testing based on the WebDriver protocol. - Source: dev.to / almost 4 years ago
  • Cross Browser Testing With WebDriverIO
    The WebDriverIO project is available on GitHub and the overall statistics speak a lot about the popularity of this JavaScript framework. It has more than 6.7K stars and the project has been forked around 1.9K times. As of writing this blog, the latest version of the WebDriverIO JavaScript framework is 7.7.2. - Source: dev.to / almost 4 years ago

What are some alternatives?

When comparing rollup.js and WebdriverIO, you can also consider the following products

Webpack - Webpack is a module bundler. Its main purpose is to bundle JavaScript files for usage in a browser, yet it is also capable of transforming, bundling, or packaging just about any resource or asset.

Jasmine - Behavior-Driven JavaScript

Parcel - Blazing fast, zero configuration web application bundler

Selenium - Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that.

npm - npm is a package manager for Node.

Nightwatch.js - Write efficient and straightforward end-to-end tests in Node.js which run against a Selenium/WebDriver server.

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