ui

This is an open-source collection of UI components meant to be copied into your own codebase rather than pulled in as a locked dependency. The project describes itself as "open code": you get the actual component source, not a pre-built package hidden behind a version number, so you can read it, change it, and treat it as the starting point for your own component library instead of a black box you have to work around. It's aimed at developers building a web app's design system who want a head start on well-designed components without giving up control over the underlying code.

Key features

• Open code, not a locked package: components ship as source you own in your project, so customizing behavior or styling means editing the component directly, not fighting an abstraction layer.
• Designed to be a starting point: the README explicitly frames the project as something to "start here then make it your own," rather than a finished, closed system.
• Foundation for your own library: intended to be used as the base for building a component library specific to your product, not just dropped in as-is.
• Open source and MIT licensed: the code is freely available and licensed under MIT, so there are no licensing restrictions on how you use or modify it.
• Documented separately: full documentation lives at a dedicated docs site rather than in the repository's README, which keeps the README itself short.
• Open to contribution: the project maintains a contributing guide for people who want to submit changes.
• Designed to be extended: the README's framing, "customize, extend, and build on," positions the components as raw material rather than a finished product you leave untouched.

Ideal use cases

This fits teams and solo developers who want a set of good-looking components as a starting point for their own design system, without being locked into upgrading a component package on someone else's schedule. Because you own the code once it's in your project, it also suits teams that expect to heavily customize components to match a specific brand or interaction pattern, rather than teams happy with a component library's defaults out of the box. It also suits developers who specifically want to learn from well-built component source rather than just consume a compiled bundle, since "open code" means the implementation itself is always readable.

It's a weaker fit if you'd rather have a traditional npm-style dependency that you upgrade centrally and never touch the internals of. Owning the component source means you're also responsible for keeping it up to date yourself and merging in any upstream improvements manually; teams that want "install once, forget about it" component management should look at a conventional packaged UI library instead. It's also not a full application framework or design tool. It's specifically components, so you'll still need your own styling system, layout, and application structure around it.

Installation

The README itself doesn't include installation commands. It points to the documentation site, https://ui.shadcn.com/docs, for setup instructions, and to CONTRIBUTING.md for anyone looking to contribute to the project itself rather than just use the components.

For most JavaScript or TypeScript projects, the standard path documented on that site is to run the project's CLI inside your app to add components directly into your codebase, rather than a plain npm install of a package you'd import as a black box. Since the README doesn't spell out the exact commands, check the docs site for the current CLI usage and any framework-specific setup notes (Next.js, Vite, Remix, and others) before starting.

Once components are added, updating them later is a manual process: since the source now lives in your project, picking up an upstream fix or a new variant generally means re-running the CLI for that specific component or updating the file directly, rather than bumping a version number in a lockfile. That trade-off is central to how this project positions itself, and it's worth weighing before adopting it broadly across a codebase.