15+ Best JavaScript Projects for Beginners to Advanced Level with Source Code – IQCode

JavaScript Projects: Importance and Ideas

JavaScript is a versatile programming language that powers most dynamic behaviors on websites. It is an interpreted, lightweight, and object-oriented language that enables interactivity on web pages. JavaScript has a simple grammar and structure similar to the C programming language and is case-sensitive. It is supported by all popular web browsers and provides complete control over web browsers.

Companies are in constant need of skilled JavaScript developers capable of building unique GitHub JavaScript projects. If you’re a newbie in JavaScript programming, building real-time JavaScript projects can enhance your skills.

Below is a list of JavaScript project ideas for beginners, intermediate programmers, and experienced coders. Each open-source project includes source code you can reference as well.

JavaScript Project Ideas:

  • Trivia Game
  • Tic Tac Toe Game
  • Weather App
  • Calculator
  • Responsive Website Template
  • Browser Extension
  • Todo List
  • Quote Generator
  • Chat Application
  • Image Slider

JavaScript projects are crucial as they provide hands-on experience in coding, help expand your portfolio, and make you stand out in a crowded job market. Start building these projects today and enhance your JavaScript programming skills!


Here are some interesting JavaScript projects that you can work on. They are categorized based on difficulty levels – beginner, intermediate, and advanced.

JavaScript Projects for Beginners

1. JavaScript Calculator
Create a simple calculator using JavaScript, HTML and CSS. Use JavaScript functions to make it operational. Here’s the source code for reference:
Code: [https://github.com/harsh98trivedi/Simple-JavaScript-Calculator]

2. JavaScript Clock
Build a clock using JavaScript to practice fundamental skills as a JavaScript developer. Here’s a source code link for a beautiful and interactive clock:
Code: [https://github.com/swasti98/JS-Clock.git]

3. Hex Color Application
Learn how to utilize button clicks and functions to make a basic hex color application that generates random colors on button click. Source code:
Code: [https://iamcodefoxx.github.io/Hex-Colors-Gradient/]

4. Random Quote Generator
Create an application that displays random famous quotes using JavaScript syntax fundamentals such as variables, loops, and object literals. Here’s the source code link:
Code: [https://github.com/RichardJamesWard/JS-Random-Quote-Generator.git]

5. Tip Calculator
Make an application that calculates the tip at restaurants using JavaScript, HTML and CSS. Here’s the source code link:
Code: [https://github.com/charlesojukwu/JavaScript-Tip-Calculator]

6. Timer
Build a simple timer using JavaScript by establishing variables to hold various time-related information such as when the time was begun, when the time was stopped and how long the time was paused. Here’s the source code link:
Code: [https://github.com/pakej/simple-timer-js.git]

7. Grocery List
Build a cool application to keep a list of items you need to purchase by adding or deleting items needed. Here’s the source code link:
Code: [https://github.com/mjowers/GroceryList.git]

8. BMI Calculator
Create a BMI calculator which takes your height and weight as input and gives BMI as an output. Here’s the source code link:
Code: [https://github.com/fwzmhmd/bmi.git]

Intermediate JavaScript Projects with Source Code

Check out these fun and educational JavaScript projects to sharpen your coding skills:

1. Happy Bouncing Balls: Generate and animate colorful bouncing balls using HTML, CSS, and JavaScript. Get the source code here.

2. JavaScript Form Validation: Ensure that user information, such as card details and address, are correct using client-side validation. This project requires HTML and JavaScript. Get the source code here.

3. Guess the Number Game: Build a fun game that prompts the user to guess a randomly generated number between 1 and 100. The source code is available.

4. Whack-a-Mole Game: Recreate the classic arcade game by randomly generating moles to whack. Create functions to generate a random length of time, select a random hole, and make the mole emerge. Get the source code here.

5. Rock Paper Scissors Game: Implement a classic two-person hand game, Rock Paper Scissors, using JavaScript and the Document Object Model. Check out the source code here.

Advanced JavaScript Projects with Source Code

Here are some advanced JavaScript projects with source code:

Real-time Weather App

Create a weather app using Vanilla JS, HTML, and CSS. The app displays weather data from the Dark Sky API. Users will see an icon that represents the current weather status, the temperature value in Celsius units, the weather description and the user’s city and country. When the user clicks on the temperature value, the app will convert it from Celsius to Fahrenheit.

Source code: https://github.com/CodeExplainedRepo/Weather-App-JavaScript.git

Movie App

This is a movie app made with HTML, CSS, JavaScript, jQuery, and Bootstrap using API calls from The Movie Database. Users can view the most popular movies, arrange them by genre, or use the search function to find other titles.

Source code: https://github.com/dangconnie/movie-app.git

Real-time Chat Application

Build a full-fledged real-time chat application using React.js, Node.js, Express.js, and Socket.io. By the end of this project, you’ll know how to use web sockets and Socket.io to send and receive messages in order to create any real-time application.

Source code: https://github.com/adrianhajdin/project_chat_application.git

File Sharing App

This app illustrates how to utilize the Virgil Crypto Library in JavaScript to construct a secure file-sharing app. You will be able to download, decrypt, and view encrypted media files from a browser after completing the procedures in the setup section.

Source code: https://github.com/VirgilSecurity/demo-sharing-js.git

Instagram Clone

Create a perfect clone of Instagram using React JS, Node JS, Postgres, Redis, JWT, and Context.

Source code: https://github.com/bzapata95/instagram-clone.git

Importance of JavaScript Projects for Web Developers

JavaScript is a crucial web technology, used by 94.5% of all websites, enabling developers to write client-side scripts for dynamic and interactive web pages. With JavaScript, developers can build server-side code, integrate with HTML5, CSS3, and create web pages for all devices. Knowing JavaScript’s fundamentals opens up various hard and exciting employment opportunities, such as designing apps, creating websites, and being a UI/UX designer or a full-stack developer.

Completing projects is an essential step for web developers to showcase their skills and improve their resume. If you lack programming knowledge, start with fundamental JavaScript classes, and then try the projects above, which are easily understandable with some HTML and CSS knowledge.

Javascript Projects to Enhance Your Skills

Here are some categorized JS projects that will add value to your portfolio and improve your skills. These are great for beginners, intermediates, and advanced developers as they cover most major JS principles.

// code for projects go here

Frequently Asked Questions

What is JavaScript used for?
JavaScript is primarily used by developers to create dynamic and interactive web projects.

Where can I find JavaScript projects?
You can find great JavaScript projects on GitHub or by exploring the recommended projects in this article with their source code links.

How do I start a JavaScript project?
If you are a beginner, start with learning the language first. Once you have mastered the language, start with a beginner-level project. If you already have experience, you can build an advanced-level project.

Is JavaScript difficult to learn?
No, it’s not that difficult. You can easily get the hang of it with practice.

Additional Resources

Here are some useful resources to learn more about JavaScript: