What Is an NFT? Complete Guide to Non-Fungible Tokens (2025) What Is an NFT? Complete Guide to Non-Fungible Tokens in 2025 Non-fungible tokens have evolved from niche crypto experiment to transformative technology This guide breaks down how NFTs work, what you actually own when you buy one, where the data lives, and practical applications across art, gaming, and real-world assets—plus how to get started safely