In-depth bundle stats analysis and monitoring

Optimize your web app's performance with automated bundle stats analysis and monitoring.

Supported build tools

  • webpack
  • Vite
  • Rollup
  • esbuild
  • Parcel
Bundle Analysis - Assets

250+ open-source and enterprise projects use RelativeCI
to ship performant modern web applications

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Ship performant web applications with in-depth bundle analysis for every build

Get in-depth bundle analysis and insights for every build. Review, fix, and optimize your web application's bundle before shipping to production.

Bundle analysis

Understand the impact of your changes

Get a detailed view of how the code changes affect your web application bundle and user performance. Review assets, modules, packages, bundle size, and bundle stats metrics. Automate the review process with GitHub Commit Status Review integration.

Bundle analysis - Assets

Dependency analysis

Evaluate the cost of third-party dependencies

Review the impact of every direct and transitive dependency. Get notified when the bundle introduces a new dependency or contains duplicate dependencies.

Support for all major package managers

  • npm
  • yarn
  • pnpm
Bundle analysis - Packages

Quick feedback

Integrate with your development flow

Get a summary of the bundle analysis report where your team is working. Quickly access the corresponding sections from the metric links.

GitHub Pull Request comment

Debug and optimize in minutes

Take advantage of historical data to identify trends and discover opportunities for optimizations. Use metric insights and job comparisons to notice what exactly changed.

Bundle stats monitoring

Identify trends

Monitor changes over longer periods and discover opportunities for optimizations. Analyze the insights for individual metrics.

Bundle metrics monitoring

In-depth bundle analysis

Debug with ease

Compare jobs over longer periods and get an in-depth view of the asset, module, and package changes. Use filters to focus on the changes that interest you.

Compare jobs


Leonardo Faria

Senior Front-end Architect

A tool that I really like is @Relative_CI, already in 3 codebases here and it helps a lot analyzing the impact of a dependency in your bundle size

In this screenshot (educational PR), adding moment().format() increases the bundle size in 7%. Good for code review suggestions

Julian Perelli


RelativeCI helped us detect big size bundles before they reach production. It removes the stress of forgetting an important check that we used to do manually.

Start analyzing and monitoring yourbundle stats