(Mastering) Solidity, the Ethereum Programming Language
Course Overview
What You'll Learn
- This part explains the development tools Hardhat and Remix.
- You will see Solidity code for making your own cryptocurrency.
- You will see the JavaScript libraries ethers.js and web3.js that are used to interact with the Ethereum blockchain.
- You will see how to set up a local test blockchain on your computer and also how to interact with an Ethereum testnet on the Internet.
- You will see how you can register and configure an Ethereum Name.
About This Free Course
This course aims to give an overview of what you need to know to program in Solidity.
The course currently consists of three parts.
In the first part, I explain some basic blockchain concepts.
In the second part, I explain tools that are used to develop blockchain applications.
This part explains the development tools Hardhat and Remix.
You will see Solidity code for making your own cryptocurrency.
You will see the JavaScript libraries ethers.js and web3.js that are used to interact with the Ethereum blockchain.
You will see how you can connect a wallet with a blockchain application. I will show MetaMask, which is a popular wallet and also WalletConnect, which acts as a bridge to connect multiple kinds of wallets with an application. I will also show how you can transfer cryptocurrencies in MetaMask.
You will see how to set up a local test blockchain on your computer and also how to interact with an Ethereum testnet on the Internet.
You will see how you can register and configure an Ethereum Name.
In the third part, I show how you can make a user interface that interacts with the Ethereum blockchain, it shows
how to retrieve the address of a smart contract through an Ethereum Name
how to read data from the blockchain through a default provider
how to connect MetaMask or a wallet through WalletConnect with the user interface
how to execute functions that write data to the blockchain through a connected wallet
how to search for events emitted by a smart contract
Who Should Take This Course
"(Mastering) Solidity, the Ethereum Programming Language" is aimed at people who want a practical, structured introduction to development without paying full price for it. It's a solid fit if you're starting out in development and want a guided course rather than piecing tutorials together yourself, if you've tried free YouTube content on the topic and want something more organized, or if you already work in a related area and want a refresher you can finish at your own pace. Since enrollment happens on Udemy itself, you keep full access to view the lectures, download any provided resources, and revisit the material later — this isn't a stripped-down or time-limited version of the course.
Why This Course Is Worth Taking
Our take: this listing earns a spot on FreeWebCart because the coupon we verified actually brings the price to $0, not just a token discount, and the course carries a 4.5/5 rating on Udemy from 202+ students who've already enrolled. That combination — real reviews plus a working 100% OFF code — is what we look for before publishing a development course. It won't replace hands-on experience or a full degree program, but as a low-risk way to test whether development is worth pursuing further, or to pick up one specific skill, the free price tag makes it an easy yes while the coupon lasts.
Pros & Cons
👍 Pros
- 100% free to enroll via this coupon (normally $84.99)
- Lifetime access on Udemy once enrolled, even after the coupon expires
- Rated 4.5/5 by past students on Udemy
- Self-paced — no fixed schedule or live sessions to attend
👎 Cons
- Coupon is time-limited and can expire before you enroll
- No live instructor support — questions go through Udemy's Q&A, not us
- Certificate is a Udemy completion certificate, not an accredited qualification
Frequently Asked Questions
Is "(Mastering) Solidity, the Ethereum Programming Language" really free?
Yes — we verified a 100% OFF Udemy coupon for this development course before publishing it. Enroll directly on Udemy using the button below; no credit card is needed while the coupon is active.
How long will this coupon last?
Udemy coupons typically last 1–3 days or expire after roughly 1,000 enrollments, whichever comes first. If the price on Udemy no longer shows $0 when you click through, the coupon has expired since we last checked it.
Do I keep access after the coupon expires?
Yes. Once you enroll while the coupon is live, "(Mastering) Solidity, the Ethereum Programming Language" is yours to keep on Udemy — including any future updates the instructor makes — even after the coupon runs out.
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