# Random String Generator

> Generate random strings from a chosen character set — for keys, tokens and test data.

To generate random strings, choose a length, a quantity and a character set. All values come from crypto.getRandomValues rather than Math.random, so the output is suitable for API keys, session tokens and anything else that must be unguessable.

**URL:** https://convertto.tech/t/random-string-generator
**Category:** Hash & Crypto Tools (https://convertto.tech/c/crypto-tools)
**Privacy:** Runs entirely in the browser; no upload
**Cost:** Free, no sign-up
**Last updated:** 2026-08-01

## Key facts

- **Privacy:** Runs entirely in your browser — nothing is uploaded
- **Cost:** Free, unlimited, no sign-up

## How to use

1. Set the length.
2. Set the how many.
3. Choose the character set.
4. The result appears immediately — copy or download it.

## FAQ

### Is this random enough for a password?

Yes, when generated here — it uses the browser's cryptographic random source, not Math.random. That distinction matters: Math.random is predictable from a few outputs and must never generate anything secret.

### How long should a random string be?

It depends on the alphabet. With 62 alphanumeric characters, each adds about 5.95 bits, so 22 characters gives roughly 128 bits — the usual target for something that must not be guessed.

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