How do I install Curved Input?

Curved Input is part of Charcoal UI Pro. Add the @charcoal registry to components.json with your access token, then run npx shadcn@latest add @charcoal/curved-input. It copies curved-input.tsx into components/ui and installs motion, clsx, tailwind-merge.

Is Curved Input free for commercial use?

Curved Input needs a Charcoal UI Pro seat, monthly or a one-time lifetime price. A seat covers unlimited personal and commercial projects, including client work, and every future Pro component.

Does Curved Input work with Next.js?

Yes. It is a client component for React 19 styled with Tailwind CSS 4, so it works in the Next.js App Router and Pages Router, Vite, Remix and Astro.

Can an AI coding agent install Curved Input?

Yes. Connect the Charcoal UI MCP server (https://charcoalui.com/mcp) to Claude Code, Cursor or any MCP client; get_component returns Curved Input's props and get_install_command returns the exact command.

Curved Input

A text field whose underline is a curve that sags toward the caret as you type and ripples when the field takes focus, the floating label riding the same bend.

Category: Inputs
Licence: Charcoal UI Pro
Built with: React 19, Tailwind CSS 4, Motion
Dependencies: motion, clsx, tailwind-merge

Examples

Curved Input

API reference

Prop	Type	Default	Description
`label`	`string`	—
`value`	`string`	—
`defaultValue`	`string`	—
`onValueChange`	`(value: string) => void`	—
`curve`	`number`	`18`	How far the line bends toward the caret, in px.
`color`	`string`	`"var(--ember)"`
`...props`	`ComponentProps<"input">`	—

About Curved Input

Curved Input replaces the straight underline with a curve that sags toward the caret as you type and ripples when the field takes focus. The floating label rides the same bend. It is a signature input for creative sites.

Curved Input is an input component for React 19, styled with Tailwind CSS 4 and animated with Motion. It drops into Next.js, Vite, Remix or Astro through the shadcn CLI as a single file you own.

When to use Curved Input

Contact and newsletter forms on portfolio sites.
Onboarding forms that should feel playful.
Search on creative landing pages.
Single-field forms where the input is the hero.

How it works

A hidden mirror span measures the text up to the caret, so the curve dips under the real character position. The line is an SVG quadratic path on springs, and the input itself is a normal text input with every native prop.

It is a real form control: it has an accessible name, works with the keyboard alone, shows a visible focus ring and announces its state to screen readers. With prefers-reduced-motion on, it holds still or settles instantly instead of animating.

Customizing Curved Input

Every prop is documented in the API reference above with its type and default. The ones you will reach for first are listed here.

The Customize panel next to the preview lets you change label, curve, color live, and the Code tab updates to match, so the snippet you copy already carries your values.

label (string).
value (string).
defaultValue (string).
curve (number, default 18): How far the line bends toward the caret, in px.
color (string, default "var(--ember)").

Goes well with Curved Input

These inputs pieces share its tokens and motion language, so they sit together on one page without clashing.

Magnetic: Make any React element lean toward the pointer and spring home: a magnetic hover in one wrapper
Color Picker: An animated React swatch colour picker with a ring that glides to the selection
Rating: An animated React star rating with hover preview and a ripple of popping stars
File Dropzone: An animated React file dropzone that lifts on hover and lists uploads with progress
Like Button: An animated React like button: the heart pops, sparks burst and the count rolls

Install Curved Input

npx shadcn@latest add @charcoal/curved-input

Curved Input is part of Charcoal UI Pro. One seat unlocks all 300 Pro components, 107 landing-page sections and 100 full templates, for every personal and client project, with updates included. Add the @charcoal registry once with your access token, then the command above copies curved-input.tsx into components/ui and installs clsx, tailwind-merge.

You own the file you install: no runtime package, no lock-in, nothing to keep in sync. Change it however your product needs.

See Charcoal UI Pro pricing · Pro setup

Frequently asked questions

How do I install Curved Input?: Curved Input is part of Charcoal UI Pro. Add the @charcoal registry to components.json with your access token, then run npx shadcn@latest add @charcoal/curved-input. It copies curved-input.tsx into components/ui and installs motion, clsx, tailwind-merge.
Is Curved Input free for commercial use?: Curved Input needs a Charcoal UI Pro seat, monthly or a one-time lifetime price. A seat covers unlimited personal and commercial projects, including client work, and every future Pro component.
Does Curved Input work with Next.js?: Yes. It is a client component for React 19 styled with Tailwind CSS 4, so it works in the Next.js App Router and Pages Router, Vite, Remix and Astro.
Can an AI coding agent install Curved Input?: Yes. Connect the Charcoal UI MCP server (https://charcoalui.com/mcp) to Claude Code, Cursor or any MCP client; get_component returns Curved Input's props and get_install_command returns the exact command.

Curved Input as Markdown · llms.txt