Sign in Components for React & Next.js

This collection gathers 67 sign-in components for React authentication screens. You'll find compact login cards, split layouts with a form beside artwork, passwordless and magic-link forms, and variants with social provider buttons. Some include remember-me toggles, forgot-password links, and inline error states; others stay stripped down. If you're building a login page or a returning-user flow, these cover the common patterns without you starting the layout from scratch.

Use a simple centered card for most apps, and a split layout when you want branding next to the form. Copy the TSX directly, install via the shadcn CLI with the component's registry URL, or pull one through the Magic MCP from your coding agent. These are Tailwind-based React components that fit into Next.js, so connect the submit handler to your auth provider and you're set.