Random String Generator
Sometimes you just need a random sequence of characters — a placeholder ID for a database seed, a temporary filename, a dummy token for a test environment, or sample data to fill in a form. This tool generates exactly that: a string of the length you choose, built from a single character set at a time — alphanumeric, letters only, digits only, hexadecimal, or a fully custom set you type in yourself. Randomness here is also drawn from your browser's Web Crypto API (crypto.getRandomValues()) rather than the less reliable Math.random() — there's no good reason to use a weaker randomness source for test strings than for everything else. Note: this is a general-purpose tool, not a security tool. There is deliberately no 'guaranteed at least one character per class' logic like in our Password Generator — that's not relevant for test IDs and would only make the character set unnecessarily complex. Need a password with guaranteed complexity instead? Use the Password Generator. Everything happens locally in your browser: nothing is sent to our server, nothing is logged, and nothing is stored.
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What's the difference between this tool and the Password Generator?
The Password Generator is specifically built to create passwords: it combines multiple character classes at once (lowercase, uppercase, digits, symbols) and guarantees that every selected class appears at least once, so you never end up with a 'strong' password that happens to contain only digits. This Random String Generator is a general-purpose tool: you pick one character set at a time (for example hexadecimal only, or letters only) without that guarantee, which is perfectly fine for test IDs, placeholder tokens, or dummy data, but is not intended as a substitute for a password. Need to generate a password? Use the Password Generator instead — it's built specifically for that.
Why does this tool use crypto.getRandomValues() if it's not a security tool?
There's no good reason to use a weaker random number generator for test strings than for the rest of our tools: crypto.getRandomValues() isn't slower or harder to use than Math.random(), and it produces a fairer character distribution (via rejection sampling, so every character in your set has exactly equal odds). The 'not a security tool' label refers to the absence of the Password Generator's guaranteed-per-class logic, not to the quality of the randomness itself.
How does the 'custom character set' option work?
Type the characters you want to use into the input field — for example lowercase letters plus a hyphen, or a specific set of symbols your system accepts. Duplicate characters are automatically ignored, and the order of the characters doesn't affect the result. Handy when you need test IDs that exactly match an external system's allowed alphabet (for example uppercase letters and digits only, without confusable characters like 0 and O).
Are my generated strings stored anywhere?
No. Generation happens entirely locally in your browser — nothing is sent to any Westcube server (or anyone else's), nothing is logged, and nothing is retained. Close the tab without copying, and the strings are gone for good.