Build A Counter Decentralized Web App with Vanilla JavaScript

Web3 is revolutionizing the web and its development. If you don’t learn Web3, you will get left behind.

Web3 is revolutionizing the web and its development. If you don’t learn Web3, you will get left behind. Learn how to build a simple website with HTML, CSS and JavaScript. Add a decentralized layer to transform your site into a decentralized web app.



Leverage Web3 to connect to crypto wallets in the browser. Enable users to interact with a smart contract on Ethereum through your site. Your app is the interface to make it easy for a large audience to use a blockchain. Don’t wait any longer. Join the community!


To build Ethereum Decentralized applications you will need to learn a couple of skills. This course can help you learn all of those skills.

This course takes the approach of “Learn by doing”. Students are encouraged to try out all aspects of the technologies on their own after each lecture. Almost all of the concepts discussed in the lectures are shown in action by way code samples etc.


Your Instructor


Alexandra Kropf
Alexandra Kropf

Alexandra Kropf is Mammoth Interactive's CLO and a software developer with extensive experience in full-stack web development, app development and game development. She has helped produce courses for Mammoth Interactive since 2016, including the Coding Interview series in Java, JavaScript, C++, C#, Python and Swift.

Mammoth Interactive is a leading online course provider in everything from learning to code to becoming a YouTube star. Mammoth Interactive courses have been featured on Harvard’s edX, Business Insider and more.

Over 12 years, Mammoth Interactive has built a global student community with 4 million courses sold. Mammoth Interactive has released over 350 courses and 3,500 hours of video content.

Founder and CEO John Bura has been programming since 1997 and teaching since 2002. John has created top-selling applications for iOS, Xbox and more. John also runs SaaS company Devonian Apps, building efficiency-minded software for technology workers like you.


Course Curriculum


  00e (Prerequisite) Advanced JavaScript - 09. Summary
Available in days
days after you enroll
  01b Build, compile, deploy and migrate Truffle Solidity smart contract
Available in days
days after you enroll

Frequently Asked Questions


When does the course start and finish?
The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish.
How long do I have access to the course?
How does lifetime access sound? After enrolling, you have unlimited access to this course for as long as you like - across any and all devices you own.
What if I am unhappy with the course?
We would never want you to be unhappy! If you are unsatisfied with your purchase, contact us in the first 30 days and we will give you a full refund.

Get started now!