bundlewatch vs size-limit vs source-map-explorer vs webpack-bundle-analyzer
JavaScript Bundle Analysis Tools
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JavaScript Bundle Analysis Tools

JavaScript bundle analysis tools are essential for optimizing web applications by providing insights into the size and composition of JavaScript bundles. These tools help developers understand the impact of their code on load times and performance, enabling them to make informed decisions about code splitting, tree shaking, and other optimization strategies. By analyzing bundles, developers can identify large dependencies, unused code, and opportunities for improvement, ultimately leading to faster and more efficient web applications.

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bundlewatch044149.3 kB32a year agoMIT
size-limit06,90239.2 kB274 days agoMIT
source-map-explorer03,924352 kB57-Apache-2.0
webpack-bundle-analyzer012,6841.45 MB2424 days agoMIT

Feature Comparison: bundlewatch vs size-limit vs source-map-explorer vs webpack-bundle-analyzer

Bundle Size Monitoring

  • bundlewatch:

    Bundlewatch allows you to track your bundle sizes over time by providing visual reports that highlight changes in size. It integrates with CI/CD workflows to enforce size limits, alerting developers when their bundles exceed specified thresholds, thus ensuring performance remains a priority throughout the development lifecycle.

  • size-limit:

    Size Limit focuses on enforcing size constraints directly in your build process. It enables you to set specific size limits for your bundles and will fail the build if those limits are exceeded, ensuring that developers are aware of size issues before they reach production.

  • source-map-explorer:

    Source Map Explorer does not monitor bundle sizes over time but rather provides a snapshot analysis of your bundles. It helps you understand the current state of your bundles, allowing you to identify large contributors and optimize them, but it does not enforce limits or provide ongoing monitoring.

  • webpack-bundle-analyzer:

    Webpack Bundle Analyzer offers a visual representation of your bundle's contents, allowing you to see how much space each module occupies. While it does not provide monitoring over time, it gives a clear view of the current bundle size and composition, helping you make immediate optimizations.

Integration with Build Tools

  • bundlewatch:

    Bundlewatch can be easily integrated into CI/CD pipelines, allowing for automated checks on bundle sizes during the build process. This integration helps teams maintain performance standards without manual intervention, making it suitable for continuous development environments.

  • size-limit:

    Size Limit integrates seamlessly with various build tools and task runners, including Webpack, Rollup, and Gulp. This flexibility allows developers to enforce size limits as part of their existing build processes without significant changes to their workflow.

  • source-map-explorer:

    Source Map Explorer is primarily a standalone tool that analyzes bundles generated by various build tools. While it does not integrate directly into build processes, it can be run as part of a build script to provide insights after the build completes, making it useful for post-build analysis.

  • webpack-bundle-analyzer:

    Webpack Bundle Analyzer is specifically designed to work with Webpack, providing an interactive visualization of the bundle contents directly within the Webpack build process. This tight integration allows for real-time analysis during development, making it easier to optimize bundles as you code.

Visualization and Reporting

  • bundlewatch:

    Bundlewatch generates visual reports that clearly show changes in bundle sizes over time, making it easy to spot trends and regressions. This visual feedback is crucial for teams that want to maintain performance standards and understand the impact of their changes.

  • size-limit:

    Size Limit provides a straightforward output in the console, indicating whether the bundle sizes are within the specified limits. While it does not offer advanced visualization, it gives clear feedback on size constraints, which is essential for maintaining performance.

  • source-map-explorer:

    Source Map Explorer provides a detailed visual representation of your JavaScript bundles, allowing you to see how different modules contribute to the overall size. This visualization helps in identifying large dependencies and optimizing them effectively.

  • webpack-bundle-analyzer:

    Webpack Bundle Analyzer offers an interactive treemap visualization of your bundle, showing the size of each module and its dependencies. This detailed view allows developers to quickly identify large modules and optimize their code structure.

Ease of Use

  • bundlewatch:

    Bundlewatch is user-friendly and straightforward to set up, requiring minimal configuration to start monitoring bundle sizes. Its integration into CI/CD pipelines is also simple, making it accessible for teams of all sizes.

  • size-limit:

    Size Limit is designed to be easy to configure and use, with a simple setup process that allows developers to quickly enforce size limits without extensive documentation or learning curves. Its simplicity makes it a popular choice for many projects.

  • source-map-explorer:

    Source Map Explorer is also easy to use, requiring only a few commands to analyze your bundles. However, it may require some familiarity with source maps to fully leverage its capabilities, which could pose a slight learning curve for new users.

  • webpack-bundle-analyzer:

    Webpack Bundle Analyzer is relatively easy to set up for Webpack users, as it integrates directly into the Webpack configuration. However, users unfamiliar with Webpack may need to invest some time in understanding how to configure it properly.

Community and Support

  • bundlewatch:

    Bundlewatch has a growing community and is actively maintained, which means users can expect regular updates and support. Its documentation is clear, helping new users get started quickly and effectively.

  • size-limit:

    Size Limit has a strong community and is widely used in the JavaScript ecosystem. It is well-documented, making it easy for developers to find help and resources when needed.

  • source-map-explorer:

    Source Map Explorer has a smaller but dedicated community. While it may not have as extensive documentation as some other tools, it is still actively maintained and provides essential functionality for bundle analysis.

  • webpack-bundle-analyzer:

    Webpack Bundle Analyzer benefits from a large user base due to its integration with Webpack. It has extensive documentation and community support, making it a reliable choice for developers looking for help and resources.

How to Choose: bundlewatch vs size-limit vs source-map-explorer vs webpack-bundle-analyzer

  • bundlewatch:

    Choose Bundlewatch if you want to monitor your bundle sizes over time and enforce size limits in your CI/CD pipeline. It provides visual reports and alerts when bundle sizes exceed specified thresholds, making it ideal for teams focused on maintaining performance standards throughout development.

  • size-limit:

    Opt for Size Limit if your primary goal is to enforce size limits on your bundles directly within your build process. It provides a simple configuration to set size limits and can integrate seamlessly with various build tools, making it a great choice for projects that prioritize bundle size management during development.

  • source-map-explorer:

    Select Source Map Explorer if you need to analyze your JavaScript bundles in detail, especially to understand the contributions of individual modules and libraries. It provides a visual representation of your source maps, allowing you to pinpoint which files are contributing most to your bundle size, making it useful for debugging and optimization.

  • webpack-bundle-analyzer:

    Use Webpack Bundle Analyzer if you are using Webpack and want an interactive visualization of your bundle's contents. It provides a detailed breakdown of the size of each module and its dependencies, helping you to identify large modules and optimize your bundle structure effectively.

Similar Npm Packages to bundlewatch

bundlewatch is a tool designed to help developers monitor and track the size of their JavaScript bundles over time. By providing a way to set size limits and receive alerts when those limits are exceeded, bundlewatch ensures that applications remain performant and efficient. This is particularly useful in large projects where bundle size can grow unexpectedly, leading to slower load times and a poor user experience. Bundlewatch integrates seamlessly into CI/CD pipelines, allowing teams to maintain control over their bundle sizes as they develop.

While bundlewatch is a powerful tool for monitoring bundle sizes, there are several alternatives available that offer similar functionalities:

  • size-limit is a tool that helps developers keep their JavaScript bundle sizes in check. It allows you to set size limits for your bundles and provides feedback during the build process. Size-limit is particularly useful for projects that prioritize performance and want to ensure that their bundles do not exceed specified limits. It integrates easily with various build tools and can be configured to run as part of your CI/CD pipeline, making it a great choice for teams focused on maintaining optimal bundle sizes.

  • source-map-explorer is a tool that analyzes the contents of your JavaScript bundles and provides insights into what is contributing to their size. By visualizing the size of each module in your bundle, source-map-explorer helps developers identify large dependencies and optimize their code accordingly. This tool is particularly useful for debugging and understanding bundle size issues, allowing developers to make informed decisions about code splitting and dependency management.

  • webpack-bundle-analyzer is a plugin for Webpack that generates a visual representation of your bundle's contents. It provides an interactive treemap that displays the size of each module, making it easy to identify large files and optimize your bundle. This tool is especially beneficial for developers using Webpack as their build tool, as it integrates seamlessly and provides real-time insights into bundle size during the development process.

To see how bundlewatch compares with size-limit, source-map-explorer, and webpack-bundle-analyzer, check out the comparison: Comparing bundlewatch vs size-limit vs source-map-explorer vs webpack-bundle-analyzer.

Similar Npm Packages to size-limit

size-limit is a tool designed to help developers monitor and manage the size of their JavaScript bundles. It allows you to set size limits for your bundles, ensuring that they do not exceed specified thresholds. This is particularly useful for optimizing performance and improving load times in web applications. By integrating size-limit into your build process, you can receive alerts when your bundles grow too large, helping you maintain an efficient and performant application.

While size-limit is a powerful tool for bundle size management, there are several alternatives that offer similar functionalities:

  • bundlewatch is a tool that tracks the size of your JavaScript bundles and notifies you when they exceed predefined limits. It provides a simple way to monitor bundle sizes over time, making it easy to catch regressions in size during development. Bundlewatch integrates with CI/CD pipelines, allowing you to enforce size limits as part of your development workflow. If you are looking for a straightforward solution to monitor your bundle sizes and receive alerts, bundlewatch is a solid choice.
  • source-map-explorer is a tool that helps you analyze the contents of your JavaScript bundles by visualizing the source maps. It allows you to see which modules contribute to the overall size of your bundles, providing insights into how to optimize them. Source-map-explorer is particularly useful for identifying large dependencies and understanding the structure of your bundles. If your focus is on analyzing and optimizing your bundle contents, this tool can be very helpful.
  • webpack-bundle-analyzer is a popular plugin for Webpack that generates an interactive treemap visualization of your bundle's contents. It provides a detailed breakdown of the size of each module in your bundle, allowing you to identify large dependencies and optimize your code accordingly. Webpack-bundle-analyzer is an excellent choice for developers who want a visual representation of their bundle sizes and the ability to drill down into the specifics of their code.

To compare these tools, check out the following link: Comparing bundlewatch vs size-limit vs source-map-explorer vs webpack-bundle-analyzer.

Similar Npm Packages to source-map-explorer

source-map-explorer is a tool designed to analyze JavaScript bundle files and visualize their contents. It helps developers understand the size of their bundles and identify which files contribute most to the overall size. By using source maps, it provides a clear breakdown of the code, allowing developers to optimize their applications effectively. This is particularly useful for identifying large dependencies or unnecessary code that can be removed or optimized.

While source-map-explorer is a powerful tool for bundle analysis, there are other alternatives available in the ecosystem that offer similar functionalities. Here are a few notable options:

  • bundle-stats is a tool that provides insights into the size and composition of your JavaScript bundles. It generates a report that can be integrated into your CI/CD pipeline, allowing you to monitor bundle sizes over time. Bundle-stats focuses on providing a clear overview of your bundle's contents, including the size of individual modules and their dependencies. This makes it easier to track changes and ensure that your bundles remain optimized as your application evolves.
  • webpack-bundle-analyzer is a popular plugin for Webpack that visualizes the size of your output files with an interactive treemap. It allows developers to explore the contents of their bundles in a user-friendly interface, making it easy to identify large modules and dependencies. This tool is particularly useful for projects that use Webpack as their module bundler, as it integrates seamlessly and provides real-time feedback on bundle size during development.

To see how source-map-explorer compares with bundle-stats and webpack-bundle-analyzer, check out the comparison: Comparing bundle-stats vs source-map-explorer vs webpack-bundle-analyzer.

Similar Npm Packages to webpack-bundle-analyzer

webpack-bundle-analyzer is a powerful tool that helps developers visualize the size of their webpack output files with an interactive treemap. This tool provides insights into the composition of your bundles, making it easier to identify large dependencies and optimize your application's performance. By analyzing the bundle size, developers can make informed decisions about code splitting, lazy loading, and other optimization techniques.

While webpack-bundle-analyzer is a popular choice for analyzing bundle sizes, there are several alternatives that offer similar functionalities. Here are a few noteworthy options:

  • bundlewatch is a tool designed to monitor the size of your bundles over time. It allows you to set size limits for your bundles and will notify you if any of them exceed the specified limits. This is particularly useful for maintaining performance standards in large projects and ensuring that new changes do not inadvertently bloat the bundle size.
  • source-map-explorer is a tool that analyzes JavaScript source maps to provide insights into the size of your JavaScript files. It helps you understand which parts of your code contribute to the overall bundle size, making it easier to identify and eliminate unnecessary code. This tool is especially useful for projects that use minification and bundling techniques.
  • stats-webpack-plugin is a webpack plugin that generates a JSON file containing information about the output files. This plugin can be used in conjunction with other tools to analyze the bundle size and structure. It provides a comprehensive overview of the build process, making it easier to debug and optimize your webpack configurations.
  • webpack-dashboard is a tool that provides a visual representation of your webpack build process in the terminal. While it does not focus solely on bundle size analysis, it offers real-time feedback on build performance, allowing developers to identify bottlenecks and optimize their build process.
  • webpack-visualizer-plugin is a plugin that generates a visual representation of your webpack bundle. It creates an HTML file that displays the size of each module in your bundle, helping you understand the structure and size distribution of your code. This tool is useful for quickly identifying large modules and optimizing your bundle.

To see how webpack-bundle-analyzer compares with these alternatives, check out the comparison: Comparing bundlewatch vs source-map-explorer vs stats-webpack-plugin vs webpack-bundle-analyzer vs webpack-dashboard vs webpack-visualizer-plugin.

README for bundlewatch



npm bundlewatch All Contributors

node Libraries.io dependency status for latest release builds test


npm-chart contributors license

BundleWatch

BundleWatch checks file sizes, ensuring bundled browser assets don't jump in file size.
Sharp increases in BundleWatch can signal that something is wrong - adding a package that bloats the slug, a wrong import, or forgetting to minify.

Inspired by Siddharth Kshetrapal bundlesize

Getting Started

Install the BundleWatch package:

  • NPM: npm install bundlewatch --save-dev
  • Yarn: yarn add bundlewatch --dev

Add some basic configuration to your package.json

{
    "name": "my package name",
    "version": "0.0.1",
    "bundlewatch": {
        "files": [
            {
                "path": "myfolder/*.js",
                "maxSize": "100kB"
            }
        ]
    }
}

Usage:

  • NPM: npm run bundlewatch
  • Yarn: yarn run bundlewatch

This will give you command line output. If you want BundleWatch to report build status on your pull requests, see below.

Adding Build Status

BundleWatch can report its status on your GitHub Pull Requests.

build status preview

CI Auth Variables Needed by BundleWatch

  • BUNDLEWATCH_GITHUB_TOKEN

You will need to give BundleWatch access to your GitHub Statuses, which can be done by heading to: https://service.bundlewatch.io/setup-github

This will give you your BUNDLEWATCH_GITHUB_TOKEN. You will need to set this as an environment variable in CI.

CI Variables Needed by BundleWatch

The most efficient way to get this running is to ensure that some environment variables are available for BundleWatch to find.

  • CI_REPO_OWNER github.com/facebook/react
  • CI_REPO_NAME github.com/facebook/react
  • CI_COMMIT_SHA
  • CI_BRANCH

If you're using, Travis, CircleCI, Wrecker, Drone or GitHub Actions these should all work out of the box.

Have a look at the source code to see which variables are automatically found: getCIVars

Viewing the results breakdown

After setting up the above you will have BuildStatus on your Pull Requests. Clicking the details link on the reported status will show you a results file breakdown.

build results preview

Additional Documentation

Full documentation available on bundlewatch.io

I use bundlesize, why should I switch to BundleWatch

  • Bundlesize has entered maintenance mode and pull requests are left hanging, so we wanted to reboot the community through creating BundleWatch
  • New BundleWatch service with infrastructure as code
  • Launched bundlewatch.io documentation website
  • Enough test coverage to support CD
  • Node API Support
  • Lower barrier to contributing (automated testing and publishing), build a trusted community of contributors to have continuous improvement

Additional Features

  • Config validation to stop users from guessing why BundleWatch won't work
  • Support for config file path
  • Better results breakdown page
  • Better comparisons between branches, support branches other than master
  • Support for your own server for storing data
  • New and improved CI behaviour
  • Show history of BundleWatchs over time

Contributors

Thanks goes to these wonderful people (emoji key):


Jake Bolam
💻
Shouvik DCosta
💻
Tyler Benning
🎨
Leila Rosenthal
📖
Francois Campbell
💻
Emmanuel Ogbizi
🚧 💻 🛡️
Pascal Iske
🐛

Oleksii Leonov
💻
Nicolas Charpentier
💻 🚧 🛡️

This project follows the all-contributors specification. Contributions of any kind welcome!

Want to Help? Become a Contributor

Contributions of any kind are welcome! See the Contributing docs.

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