Kumo
Cloudflare's component library of accessible React UI components for building web applications, built on Base UI.
Kumo is Cloudflare’s component library for web applications: a set of accessible React components. The project says it is built on top of Base UI, a library of unstyled, accessible React components, and describes its components as design-system-compliant. Cloudflare, Inc. is named as the copyright holder in the license file.
Kumo installs from the @cloudflare/kumo npm package, which a project imports from. Blocks such as page headers are installed with the Kumo CLI, which copies their code into the project so the project can change it. The docs name React and react-dom as peer dependencies.
Identity
Rendering and deploy
Releases
Adoption
Sources
- 2026-10-27: links, Categories, Install with
raw.githubusercontent.com/cloudflare/kumo/main/README.md - 2026-10-27: links, Written in, GitHub stars
api.github.com/repos/cloudflare/kumo - 2026-10-27: links
kumo-ui.com/installation - 2026-10-27: Maintainer
github.com/cloudflare/kumo/blob/main/LICENSE - 2026-10-27: Headquarters
www.cloudflare.com/privacypolicy/ - 2026-10-27: Built on
kumo-ui.com/installation/ - 2026-10-27: Install with
kumo-ui.com/cli - 2026-10-27: License, License model
raw.githubusercontent.com/cloudflare/kumo/main/LICENSE - 2026-10-27: Current major version, Last release, First release
registry.npmjs.org/@cloudflare/kumo - 2026-10-27: Contributors
api.github.com/repos/cloudflare/kumo/contributors?per_page=1 - 2026-10-28: npm downloads a week
api.npmjs.org/downloads/range/2026-09-28:2026-10-04/@cloudflare/kumo