Is this safe for security tokens?

Yes — strings are generated with crypto.getRandomValues, the browser's cryptographic random source, suitable for keys and tokens used client-side.

Which formats can I generate?

Alphanumeric, alphanumeric with symbols, hex and base64, at any length from 1 to 256 characters, in batches up to 100.

Can generated strings collide?

Practically never — at 16+ characters with a full alphabet, the probability of duplicates within a batch is negligible; the tool still deduplicates by default.

What are common uses?

API test tokens, coupon codes, temporary file names, session IDs and database seed data.

Random String Generator

Generate secure random strings for passwords or keys.

Random String Generator

Create secure random strings for passwords, keys, and more.

String Length: 16

uppercase

lowercase

numbers

symbols

Generated String

How to Use the Random String Generator

1Choose the string length and how many strings you need.
2Toggle the character sets to include — letters, digits, symbols — or go hexadecimal/base64.
3Click Generate; strings are created with your browser's cryptographic random source.
4Copy individual strings or the whole batch.