NFTs Explained
Learn everything about non-fungible tokens, from the technology behind them to creating and trading NFTs safely.
What You'll Learn
Course Content
What are NFTs?
Understanding non-fungible tokens and digital ownership
How NFTs Work
ERC-721, metadata, and on-chain vs off-chain storage
NFT Marketplaces
OpenSea, Blur, and how to buy/sell NFTs
Creating Your First NFT
Minting NFTs and understanding gas costs
NFT Use Cases
Art, gaming, memberships, and real-world applications
NFT Security & Scams
Protecting yourself from common NFT scams
What are NFTs?
NFT stands for Non-Fungible Token. Unlike cryptocurrencies such as Bitcoin or Ethereum where each unit is identical and interchangeable (fungible), each NFT is unique and cannot be replaced with something else.
Fungible vs Non-Fungible
💰 Fungible (e.g., ETH)
- • Each unit is identical
- • 1 ETH = 1 ETH, always
- • Can be divided (0.5 ETH)
- • Interchangeable
🎨 Non-Fungible (NFTs)
- • Each one is unique
- • Has specific properties
- • Cannot be divided
- • Not interchangeable
Real-World Analogy
Think of a concert ticket. While all tickets might look similar, each one is unique—it has a specific seat number, date, and can only be used once. That's what makes it non-fungible. In contrast, a dollar bill is fungible because any $1 bill works the same as any other.
What Can Be an NFT?
Digital Art
Music
Game Items
Event Tickets
Virtual Land
Certificates
Identity
Collectibles
Key Insight
NFTs aren't just JPEGs—they represent verifiable digital ownership on the blockchain. The technology can prove authenticity, track provenance, and enable new forms of creator monetization.
Your Progress
0 of 6 lessons completed
Prerequisites
- Basic blockchain understanding
- Familiarity with crypto wallets
Notable NFT Projects
OG profile pictures
Community & utility
Generative art
Web3 identity
Continue Learning
Build Your Own NFTLearn to code an ERC-721 contract