Random Text Generator

Generate test strings up to 10,000 characters from a character set you supply. Copy the result for mock data or input checks.

Use a custom alphabet to make test values with a defined length and allowed characters.

  • 100% free
  • No registration
  • On your device
  • Modern browser
  1. 1Enter details
  2. 2View result

Your input stays on this device for this operation. We don’t upload or store it.

About Random Text Generator

Use a custom alphabet to make test values with a defined length and allowed characters.

Custom alphabet

Draw from characters in the input.

Fixed length

Request a defined output length for test fixtures.

How to use Random Text Generator

  1. 1

    Set Length

    Enter a whole number from 1 to 10,000.

  2. 2

    Set the alphabet

    Enter a nonempty value in Characters Allowed.

  3. 3

    Generate and copy

    Use Generate String and copy Random Output.

Formats and practical limits

Length and character set → copyable random string

  • The character set input is limited to 1,000 characters.
  • The tool uses Math.random. Use a dedicated password generator for credentials.

Practical example

Set Length to 4 and Characters Allowed to AB. A possible output is ABBA.

Further reading

Frequently Asked Questions

1 answers
Can characters repeat?

Each position is drawn independently from the supplied string.