Installation

# Preserve existing imports with an npm alias
npm install bootstrap@npm:@stackline/bootstrap@1.0.0
# Or use the scoped package name in your imports
npm install @stackline/bootstrap@1.0.0

Node.js: See compatibility notes. Read the compatibility and maintenance notes before migrating.

Usage and API

The reference below may retain upstream package names. Use the alias installation above to run those imports with this Stackline release.

Bootstrap

Sleek, intuitive, and powerful front-end framework for faster and easier web development.
Explore Bootstrap docs »

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Bootstrap 5

Our default branch is for development of our Bootstrap 5 release. Head to the v4-dev branch to view the readme, documentation, and source code for Bootstrap 4.

Table of contents

• Quick start
• Status
• What’s included
• Bugs and feature requests
• Documentation
• Contributing
• Community
• Versioning
• Creators
• Thanks
• Copyright and license

Quick start

Several quick start options are available:

• Download the latest release
• Clone the repo: git clone https://github.com/twbs/bootstrap.git
• Install with npm: npm install bootstrap@v5.3.8
• Install with yarn: yarn add bootstrap@v5.3.8
• Install with Bun: bun add bootstrap@v5.3.8
• Install with Composer: composer require twbs/bootstrap:5.3.8
• Install with NuGet: CSS: Install-Package bootstrap Sass: Install-Package bootstrap.sass

Read the Getting started page for information on the framework contents, templates, examples, and more.

Status

What’s included

Within the download you’ll find the following directories and files, logically grouping common assets and providing both compiled and minified variations.

bootstrap/
├── css/
│   ├── bootstrap-grid.css
│   ├── bootstrap-grid.css.map
│   ├── bootstrap-grid.min.css
│   ├── bootstrap-grid.min.css.map
│   ├── bootstrap-grid.rtl.css
│   ├── bootstrap-grid.rtl.css.map
│   ├── bootstrap-grid.rtl.min.css
│   ├── bootstrap-grid.rtl.min.css.map
│   ├── bootstrap-reboot.css
│   ├── bootstrap-reboot.css.map
│   ├── bootstrap-reboot.min.css
│   ├── bootstrap-reboot.min.css.map
│   ├── bootstrap-reboot.rtl.css
│   ├── bootstrap-reboot.rtl.css.map
│   ├── bootstrap-reboot.rtl.min.css
│   ├── bootstrap-reboot.rtl.min.css.map
│   ├── bootstrap-utilities.css
│   ├── bootstrap-utilities.css.map
│   ├── bootstrap-utilities.min.css
│   ├── bootstrap-utilities.min.css.map
│   ├── bootstrap-utilities.rtl.css
│   ├── bootstrap-utilities.rtl.css.map
│   ├── bootstrap-utilities.rtl.min.css
│   ├── bootstrap-utilities.rtl.min.css.map
│   ├── bootstrap.css
│   ├── bootstrap.css.map
│   ├── bootstrap.min.css
│   ├── bootstrap.min.css.map
│   ├── bootstrap.rtl.css
│   ├── bootstrap.rtl.css.map
│   ├── bootstrap.rtl.min.css
│   └── bootstrap.rtl.min.css.map
└── js/
    ├── bootstrap.bundle.js
    ├── bootstrap.bundle.js.map
    ├── bootstrap.bundle.min.js
    ├── bootstrap.bundle.min.js.map
    ├── bootstrap.esm.js
    ├── bootstrap.esm.js.map
    ├── bootstrap.esm.min.js
    ├── bootstrap.esm.min.js.map
    ├── bootstrap.js
    ├── bootstrap.js.map
    ├── bootstrap.min.js
    └── bootstrap.min.js.map

We provide compiled CSS and JS (bootstrap.*), as well as compiled and minified CSS and JS (bootstrap.min.*). Source maps (bootstrap.*.map) are available for use with certain browsers’ developer tools. Bundled JS files (bootstrap.bundle.js and minified bootstrap.bundle.min.js) include Popper.

Bugs and feature requests

Have a bug or a feature request? Please first read the issue guidelines and search for existing and closed issues. If your problem or idea is not addressed yet, please open a new issue.

Documentation

Bootstrap’s documentation, included in this repo in the root directory, is built with Astro and publicly hosted on GitHub Pages at https://getbootstrap.com/. The docs may also be run locally.

Documentation search is powered by Algolia's DocSearch.

Running documentation locally

1. Run npm install to install the Node.js dependencies, including Astro (the site builder).
2. Run npm run test (or a specific npm script) to rebuild distributed CSS and JavaScript files, as well as our docs assets.
3. From the root /bootstrap directory, run npm run docs-serve in the command line.
4. Open http://localhost:9001 in your browser, and voilà.

Learn more about using Astro by reading its documentation.

Documentation for previous releases

You can find all our previous releases docs on https://getbootstrap.com/docs/versions/.

Previous releases and their documentation are also available for download.

Contributing

Please read through our contributing guidelines. Included are directions for opening issues, coding standards, and notes on development.

Moreover, if your pull request contains JavaScript patches or features, you must include relevant unit tests. All HTML and CSS should conform to the Code Guide, maintained by Mark Otto.

Editor preferences are available in the editor config for easy use in common text editors. Read more and download plugins at https://editorconfig.org/.

Community

Get updates on Bootstrap’s development and chat with the project maintainers and community members.

• Follow @getbootstrap on X.
• Read and subscribe to The Official Bootstrap Blog.
• Ask questions and explore our GitHub Discussions.
• Discuss, ask questions, and more on the community Discord or Bootstrap subreddit.
• Chat with fellow Bootstrappers in IRC. On the irc.libera.chat server, in the #bootstrap channel.
• Implementation help may be found at Stack Overflow (tagged bootstrap-5).
• Developers should use the keyword bootstrap on packages which modify or add to the functionality of Bootstrap when distributing through npm or similar delivery mechanisms for maximum discoverability.

Versioning

For transparency into our release cycle and in striving to maintain backward compatibility, Bootstrap is maintained under the Semantic Versioning guidelines. Sometimes we screw up, but we adhere to those rules whenever possible.

See the Releases section of our GitHub project for changelogs for each release version of Bootstrap. Release announcement posts on the official Bootstrap blog contain summaries of the most noteworthy changes made in each release.

Creators

Mark Otto

• https://x.com/mdo
• https://github.com/mdo

Jacob Thornton

• https://x.com/fat
• https://github.com/fat

Thanks

Thanks to BrowserStack for providing the infrastructure that allows us to test in real browsers!

Thanks to Netlify for providing us with Deploy Previews!

Sponsors

Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [Become a sponsor]

Backers

Thank you to all our backers! 🙏 [Become a backer]

Copyright and license

Code and documentation copyright 2011-2025 the Bootstrap Authors. Code released under the MIT License. Docs released under Creative Commons.

Upstream issues and maintenance review

Upstream origin and triage

• Original package: bootstrap@5.3.8
• Repository: https://github.com/twbs/bootstrap
• Source commit: https://github.com/twbs/bootstrap/commit/25aa8cc0b32f0d1a54be575347e6d84b70b1acd7
• Source directory: .
• npm tarball: https://registry.npmjs.org/bootstrap/-/bootstrap-5.3.8.tgz
• SHA512 integrity: sha512-HP1SZDqaLDPwsNiqRqi5NcP0SSXciX2s9E+RyqJIIqGo+vJeN5AJVM98CXmW/Wux0nQ5L7jeWUdplCEf0Ee+tg==
• npm last-release age selects maintenance scope; it does not imply no ongoing source development.

Reviewed issues

Primary-source snapshot: 2026-09-29T00:24:08.250483+00:00. Most recently updated 100 open and 30 closed issue/PR entries; PRs removed. This is triage evidence, not a claim of exhaustive review.

Maintenance adoption with preserved runtime payload. No runtime defect correction is claimed. Reports remain visible for subsequent targeted reproduction.

• 42955: v6: Password strength component - not needed?
• 37205: Arrow Indicator for Dropdown Menus
• 42907: Spacing scale audit: 53 literal spacing values off your own token scale
• 42872: Suggestion: Utility class for font-variant-numeric: tabular-nums (not to be confused with .font-monospace)
• 42889: Add multi-line text truncation utilities
• 42808: Proposal: Consider migrating the Bootstrap repository from npm to pnpm
• 40859: Visually-hidden breakpoints
• 42662: JavaScript libraries can also provide an IIFE build.
• 34299: Show collapsed content when linking directly to #fragment
• 31088: popovers: do not dismiss on next click inside
• 41596: Stacked progress bars don't use transitions when updated
• 39257: FloatingLabels not working for input date or input time
• 39867: Floating Labels for File Input
• 42648: Consider CSS gap utilities as a replacement for gutter classes
• 42677: Tabs ADA Title II non-compliant in horizontal orientation
• 42754: v6: .drawer-sheet ignores .drawer-start or .drawer-end but is always centered on screen
• 42742: Add docs for the NuGet package
• 41944: Docs: Suggestion; update "Color and background" note on color-contrast function
• 42674: Can we add a sidebar component?
• 42546: Empty space where scrollbar lives on Windows Chromium browsers with scrollbar-gutter: stable
• 37807: Grid System should support CSS Container Queries for responsive column sizing
• 35900: Navbar hides initial content when jumping to in-page anchor
• 42330: Add MCP server for Bootstrap docs and component API
• 41895: Add an example of using the nested Collapse component
• 40962: dart-sass 1.80.0+ throwing a lot of deprecations
• 39213: Feature request: add responsive btn-group-vertical classes
• 42065: Popovers and tooltips should remain open when content is hovered

The structured snapshot in .stackline/issue-triage.json also records recently closed reports. Issues for unrelated packages in shared monorepositories were qualified as outside this fork’s runtime scope. No maintainer was contacted.

Release files and references

• README.md
• UPSTREAM.md
• LICENSE
• Package and publication metadata
• Full text documentation

Package bytes, npm provenance and the immutable GitHub release were verified for this version. Security checks describe the reviewed release; documented compatibility risks and upstream reports are not blanket claims of resolution.