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Fade Through

Fade Through is a React and Tailwind CSS component from SmoothUI, licensed MIT. Copy it and paste it into your project.

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What it is

Fade Through is a React and Tailwind CSS component from SmoothUI, licensed MIT. Copy it and paste it into your project.

How to use it

Open it in the catalogue, press copy, and paste it into your project. The prompt you copy carries the code and the rules that tell your agent to reproduce it without changing anything.

Open in the catalogue

Five free copies a month. No card.

Needs

npm i motion

Licence

This component comes from SmoothUI and is redistributed under the MIT licence, which permits commercial use. The copyright notice travels with the code.

Fade Through

index.tsx
"use client";

import { AnimatePresence, motion, useReducedMotion } from "motion/react";
import { useEffect, useState } from "react";

export interface FadeThroughProps {
  className?: string;
  /** Interval between phrase transitions, in milliseconds. */
  interval?: number;
  phrases: string[];
}

const ENTER_DURATION_S = 0.42;
const EXIT_DURATION_S = 0.26;
const ENTER_EASE = [0.2, 0, 0, 1] as const;
const EXIT_EASE = [0.4, 0, 1, 1] as const;

/**
 * FadeThrough — Material-style phrase cycling: old text fades out,
 * new text fades in with a soft delay. From the animate-text catalog
 * (`fade-through`). Best for hero copy swaps and rotating taglines.
 */
export default function FadeThrough({
  phrases,
  className = "",
  interval = 2500,
}: FadeThroughProps) {
  const shouldReduceMotion = useReducedMotion();
  const [index, setIndex] = useState(0);

  useEffect(() => {
    if (shouldReduceMotion || phrases.length <= 1) {
      return;
    }
    const id = setInterval(() => {
      setIndex((prev) => (prev + 1) % phrases.length);
    }, interval);
    return () => clearInterval(id);
  }, [shouldReduceMotion, phrases.length, interval]);

  const current = phrases[index] ?? "";

  return (
    <span
      aria-live="polite"
      className={className}
      style={{ display: "inline-block", position: "relative" }}
    >
      <AnimatePresence mode="wait">
        <motion.span
          animate={{ filter: "blur(0px)", opacity: 1, scale: 1, y: 0 }}
          exit={{
            filter: "blur(0px)",
            opacity: 0,
            scale: 1,
            transition: { duration: EXIT_DURATION_S, ease: EXIT_EASE },
            y: -4,
          }}
          initial={
            shouldReduceMotion
              ? { opacity: 1 }
              : { filter: "blur(2px)", opacity: 0, scale: 0.99, y: 6 }
          }
          key={index}
          style={{ display: "inline-block" }}
          transition={
            shouldReduceMotion
              ? { duration: 0 }
              : { duration: ENTER_DURATION_S, ease: ENTER_EASE }
          }
        >
          {current}
        </motion.span>
      </AnimatePresence>
    </span>
  );
}

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