NanoIDs generator

THE PRACTICAL GUIDE · NORMANDIN SYSTEMS

Get more from NanoIDs generator

NanoIDs generator: Generate random, unique, and URL-friendly IDs for your applications. Compact identifiers can be convenient in URLs and application records, but their collision risk depends on size, alphabet, and generated volume. Random identifiers and secret values require deliberate choices about length, allowed characters, and how the result will be used. An identifier can be unique enough for an application without being suitable as an authentication secret. Restrictions imposed by databases, URLs, forms, or human transcription can also affect the useful character set. Generate a small sample first to confirm compatibility, then consider collision handling and storage in the destination system. Example values in documentation are public and should never become real credentials or reusable access codes.

Guide updated October 13, 2026

How to use this tool

1. Begin with a representative input. For a practical test, use: A selected identifier size and quantity. Replace demonstration values only after you understand the output.
2. Choose the available length, quantity, and character options to match the destination’s documented input requirements.
3. Generate a sample and inspect its characters, leading zeros, and separators before requesting or copying a larger set.
4. Use the result in the intended system with appropriate uniqueness checks or secret storage according to its purpose.

SEE IT IN PRACTICE

A worked example

Default-style URL-friendly alphabet; length 21

Illustrative value: V1StGXR8_Z5jdHi6B-myT

Each actual generation should produce a fresh value. This public example demonstrates the shape and length, not a secret or a guaranteed output.

Identify the role before choosing the format

A database identifier, a one-time login code, and an API secret have different requirements. Public identifiers need appropriate uniqueness handling. Short authentication codes need strict attempt and lifetime controls. Long bearer secrets need protected storage and transport. A numeric-looking value may also require leading zeros, so its exact string representation can matter more than its arithmetic value.

Test destination constraints explicitly

Try the longest intended value and every enabled character class in the receiving form, URL, database, or configuration file. Check whether the destination trims spaces, changes case, or rejects punctuation. For generated batches, enforce uniqueness in the system that stores the values when duplicates would be harmful. Do not infer secure authorization merely from an identifier being unfamiliar or difficult to guess.

When this tool is useful

• Create application test IDs
• Populate a mock dataset
• Explore compact identifier lengths

Tips for a better result

• Do not treat a public identifier as an authorization check merely because it is difficult to guess.
• Treat generated secrets as credentials, and do not place them in screenshots, public examples, or shared diagnostic logs.
• Length and alphabet both affect the number of possible values; a short numeric code has far fewer possibilities than a long random string.

Frequently asked questions