Token generator

THE PRACTICAL GUIDE · NORMANDIN SYSTEMS

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Token generator: Generate random string with the chars you want, uppercase or lowercase letters, numbers and/or symbols. A configurable token string can fit application-specific character restrictions while allowing a deliberate choice of length. 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 length with uppercase, lowercase, digits, and optional symbols. 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

Length: 16
Enable uppercase, lowercase, and digits

Illustrative value: N7c2Q9v4R1m8K6p3

This public 16-character example only demonstrates the selected alphabet and length. Generate a fresh value for any real secret and verify the destination’s requirements.

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 a fresh test token
• Prepare random fixture values
• Check form character restrictions

Tips for a better result

• Removing characters reduces the available space; choose length and alphabet according to the intended use.
• 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