What is Random Alphanumeric Generator?
When a mockup needs identifiers, choose a length and copy a batch of strings instead of typing each one. Every position is drawn independently from the selected letters and digits.
How to use Random Alphanumeric Generator
Set a length from 1 to 128 and quantity from 1 to 100. Choose mixed, uppercase, or lowercase letters. Optionally exclude lookalikes, then generate and copy.
Features
Three case settings; optional exclusion of 0, 1, I, O, l, o; selectable length; multiline copy.
Use Cases
Useful for sample references, interface prototypes, and classroom exercises. For symbol options, use the random string generator.
FAQ
Does each string include a letter and a number?
Not necessarily. Each character is sampled from a combined pool, so a short result may contain only letters or only digits.
Are the IDs unique?
No uniqueness guarantee is made. Characters and entire strings may repeat; enforce uniqueness in your application if needed.
Can these replace account verification codes?
This tool only generates text locally. It does not issue or validate codes for another service.
Is it fair?
Selections use browser Web Crypto with rejection sampling to avoid modulo bias. Each eligible date, character, number, or shuffle position has equal selection probability.
