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Complete Cryptocurrency & Blockchain Course | Learn Solidity (Udemy.com)

Use Solidity, Remix, Ganache, Geth, Metamask, Truffle & More To Make Blockchain Dapps! Includes Cryptocurrency Know-How.

Created by: Codestars

Last updated December 2025

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What you will learn

  • History & Economics Behind Cryptocurrencies
  • How To Buy, Sell & Invest Cryptocurrencies
  • About Wallet Types Such As Hot Wallets, Cold Wallets & More
  • How To Protect Yourself & Your Cryptocurrency Portfolio Online
  • What The Blockchain Is
  • Hands-On Developing With Solidity
  • Build Your Own Interactive Tic-Tack-Toe Game Using The Blockchain
  • Master Core Development Tools Such As Mist, Geth, & Ethereum Studio

How it compares

Against the other 94 rated Udemy courses in Blockchain Programming on CourseDuck:

  • Rating4.1 out of 5higher than 18% of them
  • Reviews96#65 of 95 by number of reviews
  • Length15.8 hourslonger than 93% of them
  • Last updatedDecember 2025more recently than 80% of them

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Course Description

Welcome to one of the largest, most in-depth cryptocurrency and blockchain courses online!

  • Blockchain developer salaries now command as much as $175k, and average $97,000

  • Over 2018 the number of full-time job openings grew by 400%! *

This course gives students the chance to work with cryptocurrencies and the blockchain on a practical level, with step-by-step instructions guiding you through the entire process.

The Course

The first half of this course is a brilliant and insightful introduction to the (often confusing) world cryptocurrency. You’ll learn everything you need to know about:

  • The history and economics of cryptocurrency

  • How to protect yourself and your investment portfolio online.

  • The key differences between hot and cold wallets

  • How to buy, sell and invest cryptocurrency

  • As well as a dedicated breakdown of various AltCoins (including Litecoin, Etherum, Ripple and more!)

The practical second half of the course teaches students how to build their own projects as an ethereum blockchain developer! Going step-by-step with the instructor, you’ll:

  • Tackle hands-on developing with solidity

  • Build your own interactive Tic-Tack-Toe game using blockchain!

  • Test your skills with practical challenges and exercises!

  • Master core development tools such as Mist, Geth, and Ethereum Studio

  • Plus learn advanced Web3 development, how to de-bug your decentralised application, and loads more!

Why Learn About Cryptocurrencies & Blockchain Technology?

  1. We’re in the early adopter stage with cryptocurrency & blockchain technology, so you have the chance to get in at the ground level and become proficient in it before it reaches the next adoption stage!

  2. This means there’s a huge demand for knowledgable cryptocurrency & blockchain employees! Blockchain developer salaries average $97,000 and the number of full-time job openings grew by 400% in 2018. Kick-start your career with this course!

  3. Plus, the cryptocurrency and blockchain communities are some of the most helpful and friendly online, and a great sound of information! This course is a great intro to this world.

Who’s teaching me?

Instructors Ravinder Deol and Thomas Wiesner have taught over 160,000 students to date and are expert lecturers in this area. Ravinder founded B21 Block (on online Cryptocurrency & Blockchain School), while Thomas co-created the industry standard Ethereum certification program CBDE.

Both instructors will be on hand throughout the course to answer your questions in the Q&A forum!!

Is this course for me?

  • Yes! No prior knowledge is needed, this course is aimed at complete beginners

  • Yes! You get unlimited lifetime access to the course

  • Yes! With a 30-day money back guarantee, enrolling on the course is risk free

* https://www.computerworld(.com)/article/3315696/blockchain-developer-salaries-now-command-as-much-as-175k.html and https://www.paysa(.com)/salaries/blockchain

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Instructor Details

Codestars

Codestars is a community of instructors behind 100+ courses and over 3 million students worldwide. We were one of the first coding communities to build here, and we've kept building — across web development, mobile, cyber security,  and now AI-powered  development and automation.

We want to revolutionize the way people learn to code by making it simple, logical, fun and, above all, accessible. Our courses are built to teach real, applicable skills, taught by instructors who know the subject and know how to teach it.

Together, the instructors that make up the Codestars team create courses on all the topics that students want to learn in the way that students want to learn them: courses that are well-structured, super interactive, and easy to understand.

Whatever you're here to learn — from the fundamentals of programming to the latest in AI-powered development — you're learning from a channel that has already done this at scale, with millions of students, and a track record to show for it.

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Reviews

4.1

96 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Kunal Banjan on 12/4/2022

Not beginner friendly at all. Wasted my money. watched multiple sections but I'm still clueless. Not well explained.

By Michael Dalton on 7/28/2021

First 7 chapters fairly well presented. But I'm afraid I was totally lost when we entered chapter 8, smart contract development. This is because the REMIX ide bore no resemblance to that on course screen... Unable to progress past that point and very disappointed....

By Dallan Simpson on 8/6/2020

So like I said before, this guide is comprehensive in all that is in the title. Be aware that course does not update often, so much of the information could be outdated.

By Jason Willis on 6/13/2019

I’m enjoying the course, it’s very well organized. From general cryptocurrency and blockchain theory to a deeper dive into ethereum development, the course has been quite thorough. =)

By Amado Ancla on 6/3/2019

The lecture sounds understandable enough. Sometimes though the accent of the lecturer gets in the way which would have been easily remedied by the subtitles. However, the subtitles seem to be autogenerated and incorrectly match the text with the lecture. It'd a far more helpful environment if subtitles were fixed.

By Erin McCulloch on 5/30/2019

Valuable information delivered by a competent, articulate, and engaging lecturer. Well worth the cost. Anyone interested in this subject would benefit greatly from the lectures provided in this course. As always the Codestars deliver a fantastic course - you will not be disappointed.

By Sarai Acevedo on 5/25/2019

This is by far one of the most informative courses I've taken but I'm still working on it. It's very understandable. I can't wait to get to the hands on portion!

By Hoi Hei Wong on 5/20/2019

The course explains the fundamental information of blockchain and cryptocurrencies clearly and easy to understand. It covered most of information which I was searching for before in systematic way, so that I have a better full pictuere of what Cyptocurrencies really are, how to buy and sell them. The course also come with a real game example solidity development and a front end interface project that I can follow along, that make me dive-deeper into the development of blockchain.

By Jonathan Rimul on 5/18/2019

Well organised. Instantly found stuff that is interesting for me. Astonishing amount of information. Will take some time to work through all that information.

By Kreola Prutsch on 5/18/2019

I stumbled upon a coupon for this course and i am very happy i found it. I had prior knowledge on the topics, but i already got deeper insight in some details. The instructors are very engaging and knowledeable. Keep up the good work!

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Overall Score : 82 / 100