Typewriter Effect

Text generates as if it is being typed on the screen.

text content hero section special

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Installation

Install dependencies

npm i motion clsx tailwind-merge

Add util file

lib/utils.ts

import { ClassValue, clsx } from "clsx";
import { twMerge } from "tailwind-merge";
 
export function cn(...inputs: ClassValue[]) {
  return twMerge(clsx(inputs));
}

Copy the source code

components/ui/typewriter-effect.tsx

"use client";
 
import { cn } from "@/lib/utils";
import { motion, stagger, useAnimate, useInView } from "framer-motion";
import { useEffect } from "react";
 
export const TypewriterEffect = ({
  words,
  className,
  cursorClassName,
}: {
  words: {
    text: string;
    className?: string;
  }[];
  className?: string;
  cursorClassName?: string;
}) => {
  // split text inside of words into array of characters
  const wordsArray = words.map((word) => {
    return {
      ...word,
      text: word.text.split(""),
    };
  });
 
  const [scope, animate] = useAnimate();
  const isInView = useInView(scope);
  useEffect(() => {
    if (isInView) {
      animate(
        "span",
        {
          display: "inline-block",
          opacity: 1,
          width: "fit-content",
        },
        {
          duration: 0.3,
          delay: stagger(0.1),
          ease: "easeInOut",
        }
      );
    }
  }, [isInView]);
 
  const renderWords = () => {
    return (
      <motion.div ref={scope} className="inline">
        {wordsArray.map((word, idx) => {
          return (
            <div key={`word-${idx}`} className="inline-block">
              {word.text.map((char, index) => (
                <motion.span
                  initial={{}}
                  key={`char-${index}`}
                  className={cn(
                    `dark:text-white text-black opacity-0 hidden`,
                    word.className
                  )}
                >
                  {char}
                </motion.span>
              ))}
              &nbsp;
            </div>
          );
        })}
      </motion.div>
    );
  };
  return (
    <div
      className={cn(
        "text-base sm:text-xl md:text-3xl lg:text-5xl font-bold text-center",
        className
      )}
    >
      {renderWords()}
      <motion.span
        initial={{
          opacity: 0,
        }}
        animate={{
          opacity: 1,
        }}
        transition={{
          duration: 0.8,
          repeat: Infinity,
          repeatType: "reverse",
        }}
        className={cn(
          "inline-block rounded-sm w-[4px] h-4 md:h-6 lg:h-10 bg-blue-500",
          cursorClassName
        )}
      ></motion.span>
    </div>
  );
};
 
export const TypewriterEffectSmooth = ({
  words,
  className,
  cursorClassName,
}: {
  words: {
    text: string;
    className?: string;
  }[];
  className?: string;
  cursorClassName?: string;
}) => {
  // split text inside of words into array of characters
  const wordsArray = words.map((word) => {
    return {
      ...word,
      text: word.text.split(""),
    };
  });
  const renderWords = () => {
    return (
      <div>
        {wordsArray.map((word, idx) => {
          return (
            <div key={`word-${idx}`} className="inline-block">
              {word.text.map((char, index) => (
                <span
                  key={`char-${index}`}
                  className={cn(`dark:text-white text-black `, word.className)}
                >
                  {char}
                </span>
              ))}
              &nbsp;
            </div>
          );
        })}
      </div>
    );
  };
 
  return (
    <div className={cn("flex space-x-1 my-6", className)}>
      <motion.div
        className="overflow-hidden pb-2"
        initial={{
          width: "0%",
        }}
        whileInView={{
          width: "fit-content",
        }}
        transition={{
          duration: 2,
          ease: "linear",
          delay: 1,
        }}
      >
        <div
          className="text-xs sm:text-base md:text-xl lg:text:3xl xl:text-5xl font-bold"
          style={{
            whiteSpace: "nowrap",
          }}
        >
          {renderWords()}{" "}
        </div>{" "}
      </motion.div>
      <motion.span
        initial={{
          opacity: 0,
        }}
        animate={{
          opacity: 1,
        }}
        transition={{
          duration: 0.8,
 
          repeat: Infinity,
          repeatType: "reverse",
        }}
        className={cn(
          "block rounded-sm w-[4px]  h-4 sm:h-6 xl:h-12 bg-blue-500",
          cursorClassName
        )}
      ></motion.span>
    </div>
  );
};

Example

A more janky animation to give a typing effect.

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Props

Prop name	Type	Description
`className`	`string`	The class name of the container component.
`words`	`Array<{text: string; className: string;}>`	Every word with a className that you can define
`cursorClassName`	`string`	The className of the cursor component

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