Random String Generator
Generate random strings with adjustable length and options.
About the Random String Generator
Generate random strings with adjustable length and options.
Random String Generator creates random strings of any length using letters, numbers, and symbols. Set the character set, length, and quantity — useful for generating API keys, test data, temporary passwords, and unique identifiers in development.
- Type
- Tool
- Runs in
- Your browser — no account, no install
- Price
- Free
- Privacy
- Inputs stay on your device unless the tool says otherwise
Frequently asked questions
Yes. They use crypto.getRandomValues() — the same cryptographic random number generator used by password managers and security software. Far stronger than Math.random().
For API keys: 32+ characters. For session tokens: 64+ characters. For temporary passwords: 16+ characters. Longer strings with more character types are exponentially harder to guess.
Toggle character sets on/off: uppercase, lowercase, digits, symbols. If you need to exclude specific characters (like ambiguous ones: 0/O, 1/l), generate a longer string and filter manually.
UUIDs are always 36 characters in a fixed format (8-4-4-4-12). Random strings have any length and format. Use UUIDs for database identifiers; use random strings for tokens, passwords, and test data.
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