Numbers & Data Randomizer Tools
Secure numbers, strings, samples and identifiers. Every tool works without sign-up and explains its settings in plain language.
Random Number Generator
Generate one or many secure random numbers inside any range, with precise control over repeats, exclusions, decimals and output order.
Use this tool →***Random Password Generator
Create strong passwords or readable passphrases locally with browser cryptography and clear composition controls.
Use this tool →A–ZRandom Letter Generator
Draw letters from A–Z or a custom alphabet with case, quantity and repetition controls.
Use this tool →.42Random Decimal Generator
Generate decimal values inside a range with a fixed, predictable number of decimal places.
Use this tool →≠Unique Random Number Generator
Draw non-repeating integers from a range so every selected number appears exactly once.
Use this tool →1,?Random Sequence Generator
Create an ordered sequence of random integers with explicit length, range and replacement settings.
Use this tool →N%Random Sample Generator
Select a simple random sample from pasted rows by exact count or percentage.
Use this tool →0000Random Digit Generator
Generate fixed-length numeric codes with leading-zero and uniqueness options.
Use this tool →a9#Random String Generator
Create one or many random strings using a chosen length, alphabet, prefix and suffix.
Use this tool →IDRandom UUID Generator
Generate standards-shaped UUID values in bulk with one-click copy and download.
Use this tool →How to pick a numbers & data tool
Choose the page that matches the result you need. Read its short description, then check the controls before you begin. If a group will use the result, agree on repeats, exclusions, and other rules first.
For a fuller explanation, visit Random Sampling and Test Data.