Random strings.
Generate one or many random strings with configurable length and character sets. Crypto-grade randomness, all in your browser.
Tool 22GeneratorsLive100% local
§ Pseudo-randomness, in bulk
Strings without a server.
Backed by the Web Crypto API where available — the same entropy your browser uses for HTTPS keys.
Is this safe for passwords?
Yes when the Web Crypto API is available (every modern browser). The tool falls back to Math.random only when crypto.getRandomValues is missing — which is essentially never on a current browser.
How many strings can I generate at once?
Up to 500 per click, with each string up to 256 characters. That covers password lists, fixture data, and short-token batches.
Why exclude ambiguous characters?
For strings that humans might transcribe (Wi-Fi passwords, recovery codes), 0/O and 1/l/I cause typos. Tick the option to avoid them.