Introduction

Scintillar UI is a set of React components designed for live-collaboration workflows — the kind of UI you'd build for multiplayer editors, shared dashboards, real-time configuration surfaces. Presence, cursors, comments, optimistic updates: all the pieces are built in.

Why another component library

The usual shadcn-style libraries solve form primitives and visual polish — and do it well. What they don't solve is:

• Presence rendering — showing who else is on a screen, what they're looking at, what they've edited.
• Collaborative behavior — optimistic updates that rejoin on conflict, cursor-aware focus rings, shared selection highlighting.
• Production-weight patterns — not just toy blocks. Auth, data tables, formula editors, MFA flows — wired up for real apps.

Scintillar UI ships the same surface you'd otherwise rebuild for every collaborative product.

How to install

Our components follow the shadcn registry format — copy-paste straight into your codebase via CLI.

npx shadcn@latest add https://ui.sntlr.app/r/button.json

See Installation for the full setup.

Where next

• Installation — get the CLI set up.
• Your own registry (coming soon) — publish your own registry on top of Scintillar primitives.
• Shell overview — learn about the tool that renders this very site and can render your registry too.