Can generated numbers be unique?
Yes. Enable “Do not repeat values.” The tool checks how many distinct values exist at the selected range and decimal precision, and reports when the requested quantity is impossible.
Generate unique numbers, custom strings, passwords, list picks, dice rolls, and coin flips with secure randomness.
Workspace
Settings
Result
Values are generated with the browser’s cryptographic random source.
Yes. Enable “Do not repeat values.” The tool checks how many distinct values exist at the selected range and decimal precision, and reports when the requested quantity is impossible.
The password mode uses the browser’s cryptographic random source and includes every selected character group. Choose a long password, keep it private, and store it in a trusted password manager.
It estimates the mathematical search space from the selected alphabet and password length. It assumes truly random selection and does not describe a website’s password storage or rate limits.
Duplicate removal is enabled by default and ignores letter case unless you choose to treat case as different. List picks never repeat an available item within the same result.
No. They are casual utilities and are not intended for regulated, audited, gambling, or other high-stakes decisions.