Build A Keep Notes App Using HTML CSS & JS

Hey, learner today In this blog post, We will be Creating a Build a Keep Notes App Using HTML CSS & JS. In the past post, we have created many projects one of them Image Carousel Using HTML CSS & JS. Now it is time to create a Keep Notes App.

Build A Keep Notes App Using HTML CSS & JS

In this project, we will be creating A note App using Javascript. This project is a user-friendly project. You can easily add the note by clicking on Add note at the top right of the webpage. After you add the notes you delete and edit the note. the notes are stored in the browser temporarily. If you refresh the webpage the note will automatically remove.

Preview of Keep Notes App on Codepen

Codepen Link

You might like this

Build A Keep Notes App Using HTML CSS & JS [Source code]

To create a Build A Keep Notes App Using HTML CSS and JS At first, you have to create three files (HTML, CSS, and JS) files with the named index.html, style.css, and Script.js in the same folder and you have to link the CSS and JS files to HTML. after that paste, the HTML code in index.html, and paste the CSS code in style.css at last paste the Javascript code in Script.js that’s all after pasting the code.

At first, you have to create an HTML file with the named index.html and paste the below HTML code on it and save it. Remember to give a .html extension to the HTML file.

<!DOCTYPE html>
<html lang="en">
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="stylesheet" href="" integrity="sha512-1PKOgIY59xJ8Co8+NE6FZ+LOAZKjy+KY8iq0G4B3CyeY6wYHN3yt9PW0XpSriVlkMXe40PTKnXrLnZ9+fkDaog==" crossorigin="anonymous" />
    <link rel="stylesheet" href="style.css" />
    <title>Notes App</title>
    <button class="add" id="add">
      <i class="fas fa-plus"></i> Add note

    <script src=""></script>
    <script src="script.js"></script>

After pasting the HTML code, Now have to create a second CSS file with the named style.css. Paste the below code on it and save it. Again remember to give .css extension to CSS file.

@import url(';400&display=swap');

* {
  box-sizing: border-box;
  outline: none;

body {
  background-color: #7bdaf3;
  font-family: 'Poppins', sans-serif;
  display: flex;
  flex-wrap: wrap;
  margin: 0;
  padding-top: 3rem;

.add {
  position: fixed;
  top: 1rem;
  right: 1rem;
  background-color: #9ec862;
  color: #fff;
  border: none;
  border-radius: 3px;
  padding: 0.5rem 1rem;
  cursor: pointer;

.add:active {
  transform: scale(0.98);

.note {
  background-color: #fff;
  box-shadow: 0 0 10px 4px rgba(0, 0, 0, 0.1);
  margin: 30px 20px;
  height: 400px;
  width: 400px;
  overflow-y: scroll;

.note .tools {
  background-color: #9ec862;
  display: flex;
  justify-content: flex-end;
  padding: 0.5rem;

.note .tools button {
  background-color: transparent;
  border: none;
  color: #fff;
  cursor: pointer;
  font-size: 1rem;
  margin-left: 0.5rem;

.note textarea {
  outline: none;
  font-family: inherit;
  font-size: 1.2rem;
  border: none;
  height: 400px;
  width: 100%;
  padding: 20px;

.main {
  padding: 20px;

.hidden {
  display: none;

At last, you have to create a Javascript file with the named script.js and paste the Js code on it and save it again don’t forget to give the .js extension to the Javascript file.

const addBtn = document.getElementById('add')

const notes = JSON.parse(localStorage.getItem('notes'))

if(notes) {
    notes.forEach(note => addNewNote(note))

addBtn.addEventListener('click', () => addNewNote())

function addNewNote(text = '') {
    const note = document.createElement('div')

    note.innerHTML = `
    <div class="tools">
        <button class="edit"><i class="fas fa-edit"></i></button>
        <button class="delete"><i class="fas fa-trash-alt"></i></button>

    <div class="main ${text ? "" : "hidden"}"></div>
    <textarea class="${text ? "hidden" : ""}"></textarea>

    const editBtn = note.querySelector('.edit')
    const deleteBtn = note.querySelector('.delete')
    const main = note.querySelector('.main')
    const textArea = note.querySelector('textarea')

    textArea.value = text
    main.innerHTML = marked(text)

    deleteBtn.addEventListener('click', () => {


    editBtn.addEventListener('click', () => {

    textArea.addEventListener('input', (e) => {
        const { value } =

        main.innerHTML = marked(value)



function updateLS() {
    const notesText = document.querySelectorAll('textarea')

    const notes = []

    notesText.forEach(note => notes.push(note.value))

    localStorage.setItem('notes', JSON.stringify(notes))

That’s all after pasting the code now your code will be successfully run. If you get any kind of error/problem in the code just comment down or contact me in social media

1 thought on “Build A Keep Notes App Using HTML CSS & JS”

Leave a Comment