Lerpa UI vs shadcn/ui: which React component library to choose
· 6 min read · comparison · shadcn · react · tailwind
A practical comparison of Lerpa UI and shadcn/ui — catalog size, motion, AI tooling, and registry compatibility. Both give you source you own; here's where Lerpa UI goes further.
Lerpa UI and shadcn/uishare the same core idea: components are copy-paste source you own, distributed through a registry rather than installed as a black-box package. If you like shadcn's philosophy, you will feel at home in Lerpa UI — in fact the registry is shadcn-compatible, so you can install Lerpa components with the shadcn CLI. The difference is mostly scope.
| Feature | Lerpa UI | shadcn/ui |
|---|---|---|
| Ownership model | Copy-paste source | Copy-paste source |
| Catalog size | 1000+ components, page blocks, animated charts | Focused core set of primitives |
| Motion | Framer Motion baked in | Bring your own |
| Registry | shadcn-compatible | Native shadcn registry |
| AI tooling | llms.txt + MCP server | Community MCPs |
| License | MIT | MIT |
Where Lerpa UI goes further
shadcn/ui gives you a clean, unopinionated base. Lerpa UI extends that base with a much larger catalog — full page blocks, dashboards, ecommerce primitives, and animated charts — plus motion built in with Framer Motion and a CSS-variable theme system. It also ships first-class AI tooling: a machine-readable llms.txt and an MCP server so agents can install components for you.
When shadcn/ui is the better pick
If you want the smallest possible surface area and intend to build most components yourself, shadcn/ui's lean core is ideal. Because Lerpa is shadcn-compatible, you can also mix both — start on shadcn primitives and pull in Lerpa blocks as you need them.
Try it
Install Lerpa UI or read the FAQ. Both libraries are free and MIT licensed.