text

Text Shimmer

A gradient shine sweeps across text continuously — great for loading and thinking states. Motion-powered.

Preview

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Thinking

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Installation

npx shadcn@latest add @cnippet/text-shimmer

Paste into a terminal — or paste into a Lovable chat and I'll run it for you.

Source files

components/ui/text-shimmer.tsx

"use client";

import { motion } from "motion/react";
import React, { type JSX, useMemo } from "react";
import { cn } from "@/lib/utils";

export type TextShimmerProps = {
  children: string;
  as?: React.ElementType;
  className?: string;
  duration?: number;
  spread?: number;
};

export const TextShimmer = React.memo(function TextShimmer({
  children,
  as: Component = "p",
  className,
  duration = 2,
  spread = 2,
}: TextShimmerProps) {
  const MotionComponent = motion.create(
    Component as keyof JSX.IntrinsicElements,
  );
  const dynamicSpread = useMemo(
    () => children.length * spread,
    [children, spread],
  );

  return (
    <MotionComponent
      animate={{ backgroundPosition: "0% center" }}
      className={cn(
        "relative inline-block bg-size-[250%_100%,auto] bg-clip-text",
        "text-transparent [--base-color:#a1a1aa] [--base-gradient-color:#000]",
        "[--bg:linear-gradient(90deg,#0000_calc(50%-var(--spread)),var(--base-gradient-color),#0000_calc(50%+var(--spread)))] [background-repeat:no-repeat,padding-box]",
        "dark:[--base-color:#71717a] dark:[--base-gradient-color:#ffffff]",
        className,
      )}
      initial={{ backgroundPosition: "100% center" }}
      style={
        {
          "--spread": `${dynamicSpread}px`,
          backgroundImage:
            "var(--bg), linear-gradient(var(--base-color), var(--base-color))",
        } as React.CSSProperties
      }
      transition={{
        duration,
        ease: "linear",
        repeat: Number.POSITIVE_INFINITY,
      }}
    >
      {children}
    </MotionComponent>
  );
});

Dependencies

motion