A "nanoid" is a type of unique identifier designed to be cryptographically secure and that are ideal for various use cases, especially those requiring unique identifiers with minimal overhead. These IDs are:

• Short and Concise: Nanoid IDs are typically shorter than traditional UUIDs, making them more convenient for use in URLs, databases, and other contexts where space is limited.
• Cryptographically Secure: The IDs generated by Nanoid are based on cryptographic randomness, ensuring a high level of security against potential collisions or predictability.
• Unique Across Distributed Systems: Nanoid IDs are designed to be globally unique, even when generated simultaneously in different locations or by different systems. This ensures that each ID is unique within practical constraints.
• URL-Safe: Nanoid IDs are URL-friendly by default, meaning they can be directly incorporated into web applications without the need for encoding or escaping.
• Customizable: While Nanoid provides sensible defaults for ID length and alphabet, developers can customize these parameters to suit their specific requirements, balancing length, randomness, and readability as needed.

In summary, Nanoid offers a lightweight yet robust solution for generating unique identifiers in JavaScript applications, providing short, secure, and customizable IDs suitable for a wide range of use cases.