Is line waves canvas or SVG?

SVG. Each wave is a path recomputed from its phase, which keeps the lines sharp at any size.

How do I install Line Waves?

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

Is Line Waves free for commercial use?

Line Waves 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 Line Waves 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 Line Waves?

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

Line Waves

Stacked horizontal sine waves that phase-shift over time, with the amplitude swelling toward the middle line. Plain SVG paths.

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

Examples

Line Waves

API reference

Prop	Type	Default	Description
`lines`	`number`	`14`
`amplitude`	`number`	`26`	Peak amplitude of the middle line, in px of the 1000×400 viewBox.
`speed`	`number`	`1`
`color`	`string`	`"var(--ember)"`	Any CSS colour, including var(--token).
`className`	`string`	—

About Line Waves

Line Waves stacks horizontal sine waves that phase-shift over time, with amplitude swelling toward the middle line. It is plain SVG paths.

Line Waves is an animated background 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 Line Waves

Audio and voice products.
Calm hero sections.
Wellness and meditation apps.
Section dividers.

How it works

Paths are recomputed each frame from phase and an envelope. It pauses off screen and holds still under reduced motion.

The whole layer is decorative and aria-hidden, sits behind your content without taking pointer events it does not need, and pauses when scrolled off screen. With prefers-reduced-motion on, it holds still or settles instantly instead of animating.

Customizing Line Waves

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 lines, amplitude, speed, color live, and the Code tab updates to match, so the snippet you copy already carries your values.

lines (number, default 14).
amplitude (number, default 26): Peak amplitude of the middle line, in px of the 1000×400 viewBox.
speed (number, default 1).
color (string, default "var(--ember)"): Any CSS colour, including var(--token).

Goes well with Line Waves

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

Ember Field: An animated React ember background: glowing embers drift up and flicker as they cool
Smoke: A slow React smoke background: blurred plumes drifting over dark sections, CSS only
Aurora: An animated React aurora background: soft light bands drifting across a section
Grid Beams: A React grid background with beams of light running along its lines
Meteors: A React meteor shower background: streaks falling diagonally, CSS only

Install Line Waves

npx shadcn@latest add @charcoal/line-waves

Line Waves 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 line-waves.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

Is line waves canvas or SVG?: SVG. Each wave is a path recomputed from its phase, which keeps the lines sharp at any size.
How do I install Line Waves?: Line Waves is part of Charcoal UI Pro. Add the @charcoal registry to components.json with your access token, then run npx shadcn@latest add @charcoal/line-waves. It copies line-waves.tsx into components/ui and installs motion, clsx, tailwind-merge.
Is Line Waves free for commercial use?: Line Waves 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 Line Waves 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 Line Waves?: Yes. Connect the Charcoal UI MCP server (https://charcoalui.com/mcp) to Claude Code, Cursor or any MCP client; get_component returns Line Waves's props and get_install_command returns the exact command.

Line Waves as Markdown · llms.txt