rollup-plugin-bundle-stats
Demo:
Compare multiple builds,
Single build
BundleStats rollup plugin
Analyze rollup stats(bundle size, assets, modules, packages) and compare the results between different builds.
- Bundle size and totals by file type(css, js, img, etc)
- Cache invalidation, Initial JS/CSS and other bundle specific metrics
- Assets report (entrypoint, initial, types, changed, delta)
- Modules report (changed, delta, chunks, duplicate count and percentage)
- Packages report (count, duplicate, changed, delta)
:star: Side by side comparison for multiple builds
Table of Contents
Install
npm install --dev rollup-plugin-bundle-stats
or
yarn add --dev rollup-plugin-bundle-stats
Configure
const { bundleStats } = require('rollup-plugin-bundle-stats');
module.exports = {
...,
plugins: [
bundleStats()
]
}
Options
compare
- use local saved stats for comparison (default true
).baseline
- save current webpack stats as baseline (default false
).html
- output html report (default true
).json
- output json report (default false
).outDir
- output directory inside rollup output director output.dir
(default ''
).silent
- stop logging info and only log warning and error (default false
).
Compare mode
In compare
mode, the metrics are compared against an existing(node_modules/.cache/bundle-stats/baseline.json
) rollup stats file(baseline). To generate the baseline webpack stats, set BUNDLE_STATS_BASELINE
environmental variable to true
or set the plugin baseline
option to true
:
# Checkout to the branch/tag/commit where you want to generate the baseline
$ git checkout master
# Build your application with BUNDLE_STATS_BASELINE environmental variable
$ BUNDLE_STATS_BASELINE=true npm run build
# Checkout to the working branch/tag/commit
$ git checkout MY_FEATURE_BRANCH
# Build your application
$ npm run build
The option can be disabled by setting the plugin compare
option to false
.
Other packages
CLI to generate bundle stats report.
Webpack plugin to generate bundle stats report.
Gatsby plugin for bundle-stats.
Next.js plugin for bundle-stats.
Related projects
Optimize your web app's performance with automated bundle stats analysis and monitoring.
- :crystal_ball: In-depth bundle stats analysis for every build
- :chart_with_upwards_trend: Monitor bundle stats changes and identify opportunities for optimizations
- :bell: Rule based automated review flow, or get notified via GitHub Pull Request comments, GitHub check reports and Slack messages
- :wrench: Support for webpack and beta support for Vite/Rollup
- :hammer: Support for all major CI services(CircleCI, GitHub Actions, Gitlab CI, Jenkins, Travis CI)
- :nut_and_bolt: Support for npm, yarn and pnpm; support for monorepos
- :two_hearts: Always free for Open Source
:rocket: Get started
Standalone web application to compare Webpack/Lighthouse/Browsertime stats.
Compare bundle stats
Github Action that generates bundle-stats reports.