Choose by what you actually want
"I want to understand NFTs and maybe buy one"
Udemy, or nothing. A well-reviewed three-hour course for about $12 is an efficient way to
get the fundamentals with someone pacing you. Honestly, though, our
free guides cover most of the same ground — the course
buys you structure, not exclusive information.
"I want to build on a blockchain"
Udemy for practical Solidity — the catalogue is much deeper and the
most-reviewed course has 28,000+ ratings.
Supplement with the free Solidity documentation and Ethernaut, which are better than most
paid security material. Coursera if you want the computer science alongside it.
"I want something for my CV"
Coursera, and be realistic about what it buys. A university-backed blockchain certificate is
a credible line on a CV in a way a Udemy certificate is not. Neither substitutes for
demonstrable work — in this field, a verified contract on a testnet says more than either.
"I want to spend nothing"
Audit on edX for the academic material, and use
the free resources listed here for the practical
side. Between the Ethereum Foundation documentation, CryptoZombies and this site, there is
very little a paid beginner course covers that you cannot get for nothing.
What certificates are actually worth
Worth being blunt about, since it drives a lot of purchasing decisions.
- Udemy completion certificates: essentially nothing to an employer. They confirm you watched the videos.
- Coursera and edX certificates: some weight, particularly from recognised universities. A plausible CV line, not a qualification.
- A deployed, verified contract: more persuasive than either, and free to produce.
In a field this young, demonstrable work outweighs credentials by a wide margin. Buy courses
for the skills. If a certificate matters to you, know what it is buying.
A note on Udemy pricing
Udemy list prices of $50–75 are largely notional — courses are discounted to $11–15 most of
the time. Never pay list price; if a sale is not running, wait a few days. The 30-day refund
window is also real and easy to use, which makes a $12 purchase a genuinely low-risk
experiment.