Letter Swap
On hover each letter rolls up and is replaced by its twin from below, in a quick stagger.
- Category: Text
- Licence: Charcoal UI Pro
- Built with: React 19, Tailwind CSS 4, Motion
- Dependencies: motion, clsx, tailwind-merge
Examples
Letter Swap
API reference
| Prop | Type | Default | Description |
|---|---|---|---|
children | string | — | |
href | string | — |
About Letter Swap
Letter Swap rolls each letter up and replaces it with its twin from below, in a quick stagger, when you hover. It makes links and buttons feel crafted.
Letter Swap is a text animation 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 Letter Swap
- Navigation links.
- Buttons and calls to action.
- Footer links.
- Portfolio project titles.
How it works
Each letter has a twin below it, and both translate on hover with a stagger. The label is the plain text.
The real text stays in the page for screen readers and search engines; the animated letters are decorative copies marked aria-hidden. With prefers-reduced-motion on, it holds still or settles instantly instead of animating.
Customizing Letter Swap
Every prop is documented in the API reference above with its type and default. The ones you will reach for first are listed here.
Style it with className like any other element. It only uses your theme's tokens, so it follows light and dark mode without extra work.
- href (string).
Goes well with Letter Swap
These text pieces share its tokens and motion language, so they sit together on one page without clashing.
- Scramble Text: React scramble text: characters cycle through glyphs before locking in
- Rotating Text: React rotating text that rolls between words letter by letter and resizes smoothly
- Highlight Text: React highlight text: a marker sweep, hand-drawn underline or scribbled circle on scroll
- Text Morph: React text morph: shared letters glide to new spots while the rest blur in and out
- Split Flap: A React split-flap display: every cell flips through the drum to its letter
Install Letter Swap
npx shadcn@latest add @charcoal/letter-swapLetter Swap 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 letter-swap.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
- Does letter swap work on buttons?
- Yes. It is made for links and buttons: on hover each letter rolls up and is replaced by its twin from below.
- How do I install Letter Swap?
- Letter Swap is part of Charcoal UI Pro. Add the @charcoal registry to components.json with your access token, then run npx shadcn@latest add @charcoal/letter-swap. It copies letter-swap.tsx into components/ui and installs motion, clsx, tailwind-merge.
- Is Letter Swap free for commercial use?
- Letter Swap 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 Letter Swap 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 Letter Swap?
- Yes. Connect the Charcoal UI MCP server (https://charcoalui.com/mcp) to Claude Code, Cursor or any MCP client; get_component returns Letter Swap's props and get_install_command returns the exact command.