Carbon
Carbon by Sage | ReactJS UI Component Library
Carbon is a [React](https://react.dev/) component library developed by Sage. The project is written primarily in TypeScript, distributed under the Apache License 2.0 license, first published in 2015. Key topics include: carbon, component-library, react, reactjs, ui-components.
Carbon

Carbon is a React component library developed by Sage.
Getting started
Our getting started guide provides instructions on how to install and use the Carbon library.
Examples
See our docs for live examples.
Agent skills
After installing carbon-react, add the Carbon agent skills to your project:
shellnpx skills add Sage/carbon
The above script will pull the latest skills, if you need to version them you can do the following (please note skills were added in v158.35.6):
shellnpx skills add https://github.com/Sage/carbon/tree/v158.50.0/skills/carbon-react
These skills give agents full context about the Carbon library, including component props, usage examples, deprecation notices, migration guides, and documentation references.
Browser Support
We support and test the Carbon Library against the latest versions of the following browsers:
We provide polyfills for the latest two versions of each of these browsers to give a grace period to update.
Versioning
We follow Semantic Versioning and we use Conventional Commits.
While we make every effort to avoid breaking changes, sometimes they are necessary. We choose to take an overly cautious
approach to breaking changes. That is we will mark something as a breaking change, even if it is extremely unlikely to affect any consumers.
We choose to make frequent but small breaking changes to give you the choice of making small incremental updates or by jumping multiple versions
in one upgrade. Ultimately the amount of breaking changes is the same, but version number increases more frequently.
We will batch breaking changes into a single version if there is a technical reason why we can't make a small breaking change, or if the impact is extraordinarily low.
We publish release notes that include the necessary upgrade steps. We also publish a codemod when possible, this will update your code to work with the new version.
For more information please see the GitHub releases.
Contributing
Read our contributing guide to learn about our development process, how to suggest bugfixes and raise issues.
Thanks
<a href="https://www.chromatic.com/"><img src="https://user-images.githubusercontent.com/321738/84662277-e3db4f80-af1b-11ea-88f5-91d67a5e59f6.png" width="153" height="30" alt="Chromatic" /></a>
Thanks to Chromatic for providing the visual testing platform that helps us review UI changes and catch visual regressions.
Licence
Carbon is licensed under the Apache-2.0 licence.
Copyright (c) 2018-2026 Sage Group Plc. All rights reserved.
Contributors
Showing top 12 contributors by commit count.
