Web Threads

A cobweb of threads strung between anchor points, each a curve that sags and sways and tenses toward the pointer as it passes.

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

Examples

Web Threads

API reference

About Web Threads

Web Threads strings a cobweb of threads between anchor points, each a curve that sags and sways and tenses toward the pointer as it passes.

Web Threads 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 Web Threads

• Networking and community brands.
• Halloween and seasonal themes.
• Interactive heroes.
• Connection and integration pages.

How it works

Threads are quadratic curves whose control points sway and are pulled by the pointer. It runs on a canvas capped at 2x pixel density, pauses when scrolled off screen, and reads its colours from your theme tokens so it follows dark mode.

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 Web Threads

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 anchors, sag, speed, interactive live, and the Code tab updates to match, so the snippet you copy already carries your values.

• anchors (number, default 14).
• sag (number, default 0.5).
• speed (number, default 1).
• color (string, default "var(--muted-foreground)").
• interactive (boolean, default true).

Goes well with Web Threads

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 Web Threads

npx shadcn@latest add @charcoal/web-threads

Web Threads 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 web-threads.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 Web Threads?

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

Is Web Threads free for commercial use?

Web Threads 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 Web Threads 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 Web Threads?

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

Web Threads as Markdown · llms.txt