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ESM: Experiment with tsdown as a bundler#32074
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nx-cloudbot commentedJul 18, 2025 • edited
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storybook-pr-benchmarkingbot commentedJul 18, 2025 • edited
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Package BenchmarksCommit: The following packages have significant changes to their size or dependencies:
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Before | After | Difference | |
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Dependency count | 2 | 2 | 0 |
Self size | 348 KB | 588 KB | 🚨 +240 KB 🚨 |
Dependency size | 2.80 MB | 2.80 MB | 0 B |
Bundle Size Analyzer | Link | Link |
@storybook/addon-docs
Before | After | Difference | |
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Dependency count | 13 | 13 | 0 |
Self size | 1.46 MB | 1.82 MB | 🚨 +360 KB 🚨 |
Dependency size | 9.00 MB | 9.00 MB | 🚨 +623 B 🚨 |
Bundle Size Analyzer | Link | Link |
@storybook/addon-jest
Before | After | Difference | |
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Dependency count | 2 | 2 | 0 |
Self size | 34 KB | 86 KB | 🚨 +51 KB 🚨 |
Dependency size | 53 KB | 53 KB | 0 B |
Bundle Size Analyzer | Link | Link |
@storybook/addon-onboarding
Before | After | Difference | |
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Dependency count | 0 | 0 | 0 |
Self size | 236 KB | 353 KB | 🚨 +117 KB 🚨 |
Dependency size | 667 B | 667 B | 0 B |
Bundle Size Analyzer | Link | Link |
storybook-addon-pseudo-states
Before | After | Difference | |
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Dependency count | 0 | 0 | 0 |
Self size | 16 KB | 53 KB | 🚨 +37 KB 🚨 |
Dependency size | 686 B | 686 B | 0 B |
Bundle Size Analyzer | Link | Link |
@storybook/addon-themes
Before | After | Difference | |
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Dependency count | 1 | 1 | 0 |
Self size | 16 KB | 51 KB | 🚨 +35 KB 🚨 |
Dependency size | 28 KB | 28 KB | 0 B |
Bundle Size Analyzer | Link | Link |
@storybook/addon-vitest
Before | After | Difference | |
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Dependency count | 6 | 6 | 0 |
Self size | 584 KB | 527 KB | 🎉 -57 KB 🎉 |
Dependency size | 1.49 MB | 1.49 MB | 0 B |
Bundle Size Analyzer | Link | Link |
@storybook/builder-vite
Before | After | Difference | |
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Dependency count | 6 | 6 | 0 |
Self size | 280 KB | 329 KB | 🚨 +50 KB 🚨 |
Dependency size | 910 KB | 909 KB | 🎉 -992 B 🎉 |
Bundle Size Analyzer | Link | Link |
storybook
Before | After | Difference | |
---|---|---|---|
Dependency count | 49 | 49 | 0 |
Self size | 21.81 MB | 19.91 MB | 🎉 -1.90 MB 🎉 |
Dependency size | 18.46 MB | 18.46 MB | 0 B |
Bundle Size Analyzer | Link | Link |
@storybook/angular
Before | After | Difference | |
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Dependency count | 185 | 185 | 0 |
Self size | 107 KB | 135 KB | 🚨 +28 KB 🚨 |
Dependency size | 29.35 MB | 29.36 MB | 🚨 +3 KB 🚨 |
Bundle Size Analyzer | Link | Link |
@storybook/ember
Before | After | Difference | |
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Dependency count | 191 | 191 | 0 |
Self size | 15 KB | 12 KB | 🎉 -3 KB 🎉 |
Dependency size | 27.94 MB | 27.94 MB | 🚨 +3 KB 🚨 |
Bundle Size Analyzer | Link | Link |
@storybook/html-vite
Before | After | Difference | |
---|---|---|---|
Dependency count | 9 | 9 | 0 |
Self size | 23 KB | 21 KB | 🎉 -2 KB 🎉 |
Dependency size | 1.22 MB | 1.27 MB | 🚨 +51 KB 🚨 |
Bundle Size Analyzer | Link | Link |
@storybook/nextjs
Before | After | Difference | |
---|---|---|---|
Dependency count | 529 | 529 | 0 |
Self size | 657 KB | 615 KB | 🎉 -42 KB 🎉 |
Dependency size | 57.71 MB | 57.69 MB | 🎉 -24 KB 🎉 |
Bundle Size Analyzer | Link | Link |
@storybook/nextjs-vite
Before | After | Difference | |
---|---|---|---|
Dependency count | 130 | 130 | 0 |
Self size | 3.04 MB | 3.43 MB | 🚨 +386 KB 🚨 |
Dependency size | 21.03 MB | 21.05 MB | 🚨 +18 KB 🚨 |
Bundle Size Analyzer | Link | Link |
@storybook/preact-vite
Before | After | Difference | |
---|---|---|---|
Dependency count | 9 | 9 | 0 |
Self size | 13 KB | 12 KB | 🎉 -2 KB 🎉 |
Dependency size | 1.21 MB | 1.29 MB | 🚨 +83 KB 🚨 |
Bundle Size Analyzer | Link | Link |
@storybook/react-native-web-vite
Before | After | Difference | |
---|---|---|---|
Dependency count | 161 | 161 | 0 |
Self size | 33 KB | 30 KB | 🎉 -3 KB 🎉 |
Dependency size | 22.36 MB | 22.37 MB | 🚨 +14 KB 🚨 |
Bundle Size Analyzer | Link | Link |
@storybook/react-vite
Before | After | Difference | |
---|---|---|---|
Dependency count | 120 | 120 | 0 |
Self size | 33 KB | 29 KB | 🎉 -4 KB 🎉 |
Dependency size | 18.98 MB | 19.00 MB | 🚨 +22 KB 🚨 |
Bundle Size Analyzer | Link | Link |
@storybook/react-webpack5
Before | After | Difference | |
---|---|---|---|
Dependency count | 272 | 272 | 0 |
Self size | 24 KB | 23 KB | 🎉 -1 KB 🎉 |
Dependency size | 42.59 MB | 42.56 MB | 🎉 -24 KB 🎉 |
Bundle Size Analyzer | Link | Link |
@storybook/server-webpack5
Before | After | Difference | |
---|---|---|---|
Dependency count | 198 | 198 | 0 |
Self size | 16 KB | 15 KB | 🎉 -2 KB 🎉 |
Dependency size | 32.47 MB | 32.47 MB | 🚨 +3 KB 🚨 |
Bundle Size Analyzer | Link | Link |
@storybook/svelte-vite
Before | After | Difference | |
---|---|---|---|
Dependency count | 18 | 18 | 0 |
Self size | 52 KB | 53 KB | 🚨 +1 KB 🚨 |
Dependency size | 25.79 MB | 25.82 MB | 🚨 +33 KB 🚨 |
Bundle Size Analyzer | Link | Link |
@storybook/sveltekit
Before | After | Difference | |
---|---|---|---|
Dependency count | 19 | 19 | 0 |
Self size | 44 KB | 47 KB | 🚨 +2 KB 🚨 |
Dependency size | 25.85 MB | 25.88 MB | 🚨 +34 KB 🚨 |
Bundle Size Analyzer | Link | Link |
@storybook/vue3-vite
Before | After | Difference | |
---|---|---|---|
Dependency count | 105 | 105 | 0 |
Self size | 34 KB | 34 KB | 🚨 +96 B 🚨 |
Dependency size | 42.60 MB | 42.67 MB | 🚨 +64 KB 🚨 |
Bundle Size Analyzer | Link | Link |
@storybook/web-components-vite
Before | After | Difference | |
---|---|---|---|
Dependency count | 10 | 10 | 0 |
Self size | 19 KB | 18 KB | 🎉 -2 KB 🎉 |
Dependency size | 1.25 MB | 1.30 MB | 🚨 +52 KB 🚨 |
Bundle Size Analyzer | Link | Link |
sb
Before | After | Difference | |
---|---|---|---|
Dependency count | 50 | 50 | 0 |
Self size | 1 KB | 1 KB | 0 B |
Dependency size | 40.27 MB | 38.37 MB | 🎉 -1.90 MB 🎉 |
Bundle Size Analyzer | Link | Link |
@storybook/cli
Before | After | Difference | |
---|---|---|---|
Dependency count | 217 | 217 | 0 |
Self size | 651 KB | 766 KB | 🚨 +115 KB 🚨 |
Dependency size | 87.90 MB | 84.29 MB | 🎉 -3.60 MB 🎉 |
Bundle Size Analyzer | Link | Link |
@storybook/codemod
Before | After | Difference | |
---|---|---|---|
Dependency count | 186 | 186 | 0 |
Self size | 27 KB | 26 KB | 🎉 -2 KB 🎉 |
Dependency size | 68.89 MB | 66.99 MB | 🎉 -1.90 MB 🎉 |
Bundle Size Analyzer | Link | Link |
create-storybook
Before | After | Difference | |
---|---|---|---|
Dependency count | 1 | 1 | 0 |
Self size | 15.61 MB | 13.91 MB | 🎉 -1.70 MB 🎉 |
Dependency size | 98 KB | 98 KB | 0 B |
Bundle Size Analyzer | Link | Link |
@storybook/csf-plugin
Before | After | Difference | |
---|---|---|---|
Dependency count | 4 | 4 | 0 |
Self size | 8 KB | 7 KB | 🎉 -992 B 🎉 |
Dependency size | 875 KB | 875 KB | 0 B |
Bundle Size Analyzer | Link | Link |
@storybook/react-dom-shim
Before | After | Difference | |
---|---|---|---|
Dependency count | 0 | 0 | 0 |
Self size | 9 KB | 10 KB | 🚨 +2 KB 🚨 |
Dependency size | 785 B | 785 B | 0 B |
Bundle Size Analyzer | Link | Link |
@storybook/preset-server-webpack
Before | After | Difference | |
---|---|---|---|
Dependency count | 10 | 10 | 0 |
Self size | 7 KB | 6 KB | 🎉 -852 B 🎉 |
Dependency size | 1.20 MB | 1.20 MB | 🚨 +755 B 🚨 |
Bundle Size Analyzer | Link | Link |
@storybook/preact
Before | After | Difference | |
---|---|---|---|
Dependency count | 2 | 2 | 0 |
Self size | 15 KB | 50 KB | 🚨 +34 KB 🚨 |
Dependency size | 32 KB | 32 KB | 0 B |
Bundle Size Analyzer | Link | Link |
@storybook/react
Before | After | Difference | |
---|---|---|---|
Dependency count | 2 | 2 | 0 |
Self size | 598 KB | 570 KB | 🎉 -28 KB 🎉 |
Dependency size | 15 KB | 16 KB | 🚨 +2 KB 🚨 |
Bundle Size Analyzer | Link | Link |
@storybook/server
Before | After | Difference | |
---|---|---|---|
Dependency count | 3 | 3 | 0 |
Self size | 8 KB | 9 KB | 🚨 +1 KB 🚨 |
Dependency size | 716 KB | 716 KB | 0 B |
Bundle Size Analyzer | Link | Link |
@storybook/svelte
Before | After | Difference | |
---|---|---|---|
Dependency count | 2 | 2 | 0 |
Self size | 43 KB | 23 KB | 🎉 -20 KB 🎉 |
Dependency size | 230 KB | 230 KB | 0 B |
Bundle Size Analyzer | Link | Link |
@storybook/vue3
Before | After | Difference | |
---|---|---|---|
Dependency count | 3 | 3 | 0 |
Self size | 50 KB | 65 KB | 🚨 +15 KB 🚨 |
Dependency size | 212 KB | 212 KB | 0 B |
Bundle Size Analyzer | Link | Link |
…s and frameworks to maintain consistency and ensure proper version tracking.
Closes #
What I did
Checklist for Contributors
Testing
The changes in this PR are covered in the following automated tests:
Manual testing
This section is mandatory for all contributions. If you believe no manual test is necessary, please state so explicitly. Thanks!
Documentation
MIGRATION.MD
Checklist for Maintainers
When this PR is ready for testing, make sure to add
ci:normal
,ci:merged
orci:daily
GH label to it to run a specific set of sandboxes. The particular set of sandboxes can be found incode/lib/cli-storybook/src/sandbox-templates.ts
Make sure this PR containsone of the labels below:
Available labels
bug
: Internal changes that fixes incorrect behavior.maintenance
: User-facing maintenance tasks.dependencies
: Upgrading (sometimes downgrading) dependencies.build
: Internal-facing build tooling & test updates. Will not show up in release changelog.cleanup
: Minor cleanup style change. Will not show up in release changelog.documentation
: Documentationonly changes. Will not show up in release changelog.feature request
: Introducing a new feature.BREAKING CHANGE
: Changes that break compatibility in some way with current major version.other
: Changes that don't fit in the above categories.🦋 Canary release
This PR does not have a canary release associated. You can request a canary release of this pull request by mentioning the
@storybookjs/core
team here.core team members can create a canary releasehere or locally with
gh workflow run --repo storybookjs/storybook canary-release-pr.yml --field pr=<PR_NUMBER>