Random strings

Quick text values for examples, fixtures and experiments.

Latest result

Make a little test data

Choose the alphabet, string length and number of results.

How it works

Choose an alphabet such as letters and digits, binary, hexadecimal or a custom set. Set a length from 1 to 128.
Generate 1 to 100 strings. Optionally prevent a character from repeating inside each string.
Copy or export the values, one per line. The current settings and up to 30 generations stay in this browser.

Clear character rules

Every character position samples uniformly from the allowed alphabet. With repeated characters disabled, selection is without replacement within each string, and the length cannot exceed the alphabet size. Separate strings are independent and can be identical.

Your inputs stay with you

Your entries, settings and results are processed in this browser and are not sent to our server. Clearing browser data removes saved drafts and results. Export a text file if you want to keep a copy. Hosting may record standard page-request logs.

Are these suitable for passwords?

This tool is for test values and examples. Results are kept in local history, and there is no password-policy validation or secret-handling flow. Do not use its stored outputs as real passwords or access tokens. HEX and binary presets describe text characters, not binary-file downloads.