Node.js is an open-source, cross-platform JavaScript runtime that allows you to run JavaScript code on the server side. It is built on Google Chrome's V8 JavaScript engine and enables the creation of scalable, high-performance web applications.

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Node JS Free Online Course with Certification [2025]

Node JS Free Online Course with Certification [2025]

Q: 2. How does Node.js work?

Node.js uses a non-blocking, event-driven architecture, which means it can handle many connections simultaneously without waiting for each to finish. It uses a single-threaded event loop for asynchronous processing, making it lightweight and efficient.

Q: 3. What are the benefits of using Node.js?

Node.js offers benefits like fast performance, scalability, real-time data processing, and the ability to handle multiple requests concurrently. It is particularly useful for building APIs, real-time applications, and data-intensive apps.

Q: 4. What is the Node.js event loop?

The event loop in Node.js handles asynchronous operations. It allows Node.js to process requests without blocking the execution thread, enabling non-blocking I/O operations such as reading files, making network requests, and interacting with databases.

Q: 5. What is npm (Node Package Manager)?

npm is the default package manager for Node.js. It is used to manage dependencies, libraries, and packages for your Node.js projects, making it easier to install, update, and manage external modules.

Q: 6. How is Node.js different from JavaScript?

JavaScript is a programming language used primarily for client-side scripting (in the browser), while Node.js is a runtime environment that enables JavaScript to be run on the server-side. Node.js also provides APIs and built-in modules for handling file systems, networking, and databases.

Q: 7. Is Node.js good for real-time applications?

Yes, Node.js is excellent for real-time applications such as chat apps, gaming servers, and live updates because it supports WebSockets and enables real-time two-way communication between the client and server.

Q: 8. What are some use cases for Node.js?

Node.js is ideal for: Real-time applications (e.g., chat applications, live updates) API servers Single-page applications (SPAs) Streaming services Microservices architecture

Q: 9. How do I install Node.js on my system?

To install Node.js, you can visit the official Node.js website and download the installer for your operating system (Windows, macOS, or Linux). After installation, you can check the version using the command node -v in the terminal.

Q: 10. What is Express.js and how does it relate to Node.js?

Express.js is a minimalist web framework built on top of Node.js that simplifies the creation of web applications and APIs. It provides tools to handle routing, middleware, and HTTP requests, making Node.js development faster and more efficient.

By Rohan Vats

Updated on Feb 28, 2025 | 10 min read | 15.8k views

Node.js is a powerful, open-source runtime environment that enables developers to build scalable and high-performance web applications using JavaScript on the server side. Unlike traditional server-side technologies, Node.js operates on a non-blocking, event-driven architecture, making it ideal for building real-time applications such as chat apps, streaming platforms, and collaborative tools. Its ability to handle multiple simultaneous connections efficiently makes it a top choice for industries like e-commerce, finance, healthcare, and more.

If you’re looking to be an expert in backend development, then, a Node JS Free Online Course can be your gateway to building scalable and high-performance applications using JavaScript on the server side.

Key Significance of Node.js:

Scalability:
Node.js excels at handling large volumes of requests with minimal performance overhead.
Speed:
Powered by Google's V8 JavaScript engine, Node.js executes code quickly.
Cross-industry Application:
Widely used across web, mobile, and enterprise app development.
Career Growth:
A Node.js certification can significantly enhance your career prospects in backend development.

In this blog, we explore various free Node.js courses that provide hands-on training, covering everything from the basics of Node.js to advanced topics like creating scalable applications.

Best Node JS Free Online Course with Certification (2025)

In today’s fast-paced world, there are countless online courses available to sharpen your skills. All you need is the curiosity to explore! Below, we’ve highlighted some free Node.js courses with certifications that can help you build your expertise and take your career to the next level.

Node.js for Beginners by upGrad

About the Course:

The Node.js for Beginners course offers an introduction to building web applications that require real-time connections. In this 14-hour free online course, you will learn the fundamentals of Node.js, including environment setup, the I/O model, and working with various modules and packages. You will also gain hands-on experience with JavaScript and JSON objects to build dynamic web applications.

This self-paced course allows you to learn at your own pace while gaining valuable insights from industry experts. Upon completion, you’ll earn a Node.js certification that you can proudly share.

Skills You’ll Learn:

Skill	Description
JavaScript Runtime Environment	Learn the core features and functionality of the Node.js runtime.
JSON and JavaScript Objects	Work with JSON objects and JavaScript to handle data effectively.
Web Development	Develop web applications with Node.js and various frameworks.
Node and Third-Party Packages	Learn how to integrate third-party modules to enhance Node.js applications.
Custom Scripts	Build custom scripts for backend and web development.

Who Should Opt for This Certification?

Aspiring Web Developers: Perfect for beginners interested in mastering web development with Node.js.
JavaScript Developers: Developers looking to expand their skills into backend development with Node.js.
Tech Enthusiasts: Anyone curious about building real-time applications using Node.js.
Career Changers: Individuals seeking to transition into software or backend development.
Students & Graduates: Ideal for those looking to strengthen their programming skills and gain industry-recognized certification.

Explore the Top 10 Best Computer Programming Courses

Introduction to Node JS & Express by Udemy

About the Course:

The Intro to Node.js & Express course is the perfect starting point for anyone looking to build a career as a full-stack developer. This free tutorial introduces you to two of the most popular technologies in web development: Node.js and Express. Over 2 hours and 13 minutes of on-demand video, you will learn how to create a simple web application using these tools, along with Bootstrap and jQuery.

You’ll also learn how to deploy your app to a staging environment, giving you real-world experience. The course is beginner-friendly and covers key concepts in building dynamic web apps, making it ideal for anyone looking to enhance their development skills and earn a Node.js certification free.

Skills You’ll Learn:

Skill	Description
Node.js Basics	Learn the fundamentals of the Node.js runtime and how to build server-side applications.
Express Framework	Understand how to build web servers and APIs using the Express.js framework.
Web Development with Bootstrap	Design responsive and user-friendly web applications with Bootstrap.
Deploying Web Apps	Learn to deploy a web application to a staging environment using best practices.
JavaScript & jQuery	Enhance the functionality of your web apps by using JavaScript and jQuery.

Who Should Opt for This Certification?

Aspiring Full-Stack Developers: Ideal for anyone starting their full-stack development journey.
JavaScript Developers: Those familiar with JavaScript who want to learn backend development using Node.js and Express.
Web Developers: Anyone interested in building dynamic web applications with a modern tech stack.
Students and Graduates: Perfect for those who want to gain hands-on experience and earn a Node.js certification.
Career Changers: Individuals looking to transition into web development or backend development.

Read: Express JS Tutorial

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Developing Back-End Apps with Node.js and Express

About the Course:

Developing Back-End Apps with Node.js and Express is an intermediate-level course designed to teach you how to build scalable server-side applications using Node.js and Express, two powerful tools in modern web development.

This course covers essential topics like npm, asynchronous programming with callbacks and promises, and extending your applications with third-party packages. With approximately 13 hours of learning, this course is flexible and self-paced, making it suitable for developers with prior experience in JavaScript.

Skills You’ll Learn:

Skill	Description
Node.js & Express	Learn to build back-end applications using Node.js and Express.
Asynchronous Programming	Develop asynchronous callback functions and use promises in Node.js.
npm Package Management	Manage your Node.js packages using npm for project dependency management.
Third-Party Packages	Extend applications by integrating third-party packages and frameworks.

Who Should Opt for This Certification?

Intermediate Developers: Those with prior experience in JavaScript and looking to transition into back-end development.
Full-Stack Developers: Professionals looking to enhance their back-end skills with Node.js and Express.
Backend Web Developers: Developers who want to build scalable, high-performance back-end applications.
Aspiring Software Engineers: Learners aiming for careers in back-end or full-stack web development.

Our readers also read Top 7 Node js Project Ideas & Topics

Create a Node JS Backend App and Host it on AWS by Udemy

About the Course:

Create a Node.js Backend App and Host it on AWS is a free, hands-on course designed to teach you how to develop and deploy a scalable backend application using Node.js and AWS. In this course, you'll learn how to create a simple web app and host it on AWS with auto-scaling containers, making it a perfect course for developers looking to understand cloud hosting and scaling concepts.

Skills You’ll Learn:

Skill	Description
Node.js Backend Development	Learn to create and develop a backend app using Node.js.
AWS Deployment	Host and manage the backend app on AWS, utilizing auto-scaling features.
Web App Creation	Build a simple web app and integrate it with the backend for full functionality.
Cloud Hosting & Auto-Scaling	Understand how to deploy applications on AWS and take advantage of auto-scaling features.

Who Should Opt for This Certification?

Aspiring Backend Developers: Those looking to build backend apps using Node.js and deploy them on AWS.
Cloud Enthusiasts: Individuals interested in cloud computing, AWS, and auto-scaling features.
Full-Stack Developers: Developers looking to enhance their skills in both backend and cloud-based hosting.
Students & Learners: Beginners wanting to understand Node.js development and cloud deployment from scratch.

Learn the Difference Between Node JS and React JS for more in-depth knowledge

Node JS 12 Getting Started

About the Course:

Node.js 12: Getting Started is a comprehensive free tutorial designed to introduce you to the fundamentals of Node.js, a powerful runtime environment that powers back-end services for major companies like PayPal, Netflix, LinkedIn, and NASA. In this course, you’ll get hands-on experience with essential Node.js concepts, including package management, module dependencies, event-driven concurrency, and interaction with the operating system.

The course also explores modern JavaScript features you can leverage in Node.js. By the end of the course, you’ll be comfortable creating scalable back-end services and executing code in Node.js. Whether you're looking to build web or mobile applications, this course will equip you with the skills to create efficient and scalable back-end services using Node.js.

Skills You’ll Learn:

Skill	Description
Node.js Fundamentals	Learn the basics of Node.js including setup and essential tools.
Package Management (NPM)	Understand how to manage dependencies and packages with Node Package Manager (NPM).
Event-Driven Concurrency	Gain knowledge of Node’s asynchronous and event-driven concurrency model.
Modules & Dependencies	Learn how to manage Node.js modules and external dependencies.
Working with Web Servers	Develop a web server using Node.js to handle requests and responses.
JavaScript for Node.js	Master modern JavaScript features and apply them in Node.js applications.
Operating System Interaction	Learn how to interact with the server's operating system using Node.js.

Who Should Opt for This Certification?

Aspiring Backend Developers: Anyone looking to learn Node.js to build backend services.
Full-Stack Developers: Developers who want to expand their backend skills and incorporate Node.js into their projects.
JavaScript Developers: Frontend JavaScript developers looking to learn server-side JavaScript development with Node.js.
Students & Beginners: Those new to programming or server-side development who want to get started with Node.js.

This Node.js certification is a great starting point for those looking to build backend services with Node.js. It’s available as a free Node.js certification, perfect for anyone eager to enhance their programming skills and start creating scalable web and mobile apps.

Top Career Paths After a Node JS Course

The following career paths are some of the top career paths available after completing a Node.js certification. With the demand for Node.js developers growing across various industries, learning Node.js opens up a wide range of opportunities in back-end development and full-stack development, cloud solutions, and more.

Career Path	Role Description	Average Salary (₹)
Node.js Developer	Specializes in building server-side applications using Node.js, ensuring scalability, performance, and security of back-end services.	₹5L/yr
Full Stack Developer	Works on both front-end and back-end technologies, integrating Node.js with other technologies like React, Angular, or Vue.js for complete web applications.	₹5L/yr
Backend Developer	Focuses on the back-end of web applications, developing and maintaining server-side logic, APIs, and databases using Node.js.	₹8L/yr
Software Engineer	Designs, develops, and maintains software applications with a focus on creating robust, scalable systems, often using Node.js for server-side development.	₹8L/yr
DevOps Engineer	Works on automating and optimizing the deployment, operation, and scaling of Node.js applications, integrating them into cloud-based environments.	₹8L/yr
Application Architect	Designs the architecture of web applications, ensuring high scalability, security, and performance, often using Node.js as the back-end technology.	₹19.0L/yr
Cloud Developer	Develops cloud-based applications, implementing Node.js solutions for scaling services in the cloud (e.g., AWS, Azure, Google Cloud).	₹12.0L/yr
Technical Lead	Leads development teams, guiding them through Node.js application development, architecture, and deployment best practices.	₹20.0L/yr

Wrap Up!

Node.js has become an indispensable tool for backend development, empowering developers to build high-performance, scalable applications. From mastering core concepts to building real-time apps, this topic has given you a strong foundation to excel in the world of web development. By mastering Node.js through a Node JS Free Online Course, you can open doors to exciting career opportunities and be part of the tech revolution.

Tips to Get Started:

Get comfortable with JavaScript fundamentals before diving into Node.js.
Set up a Node.js development environment and start building basic applications.
Learn to work with popular frameworks like Express for backend development.
Explore asynchronous programming and practice real-world projects.

If you want to know in-depth details about the course and are excited to start your Node.js journey? Check out upGrad's free Node.js tutorial and begin building your skills today!

upGrad

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Certification8 Months

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