Fastsoft

Developer Tools

Random String Generator

Create secure strings with custom lengths and character sets.

Random String Generator
Create random strings with Web Crypto and your choice of character sets.

Fastsoft / Guide

Practical guide

Generate random strings with a chosen length, quantity and character set. Use them for test tokens, placeholders or values that need to be copied by hand.

How to use it

  1. Set a length from 1 to 256 and a quantity from 1 to 50.
  2. Select at least one character group: lowercase, uppercase, digits or symbols.
  3. Generate and copy an individual value or the whole batch.

Example

For a local development demo token, a 32-character value using letters and digits is more practical than a short memorable word.

What to know

Strength depends on both length and the selected alphabet. Results are not saved after a refresh. The clipboard may be accessible to other apps, so handle sensitive output carefully.

Common question

How do I increase the strength of a generated value?

Use a longer string and more character groups. Avoid very short values for sensitive systems.

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