Choose a length and which character sets to include, then generate random strings for tokens, test data, IDs, and keys. Everything runs in your browser.
A flexible building block for developers and testers: API keys, session tokens, coupon codes, temporary identifiers, and random test values. Toggle uppercase, lowercase, digits, and symbols to match the format a system expects.
Because it all runs locally with your device's secure random source, the strings never leave your browser — safe to use even for sensitive tokens. For login passwords specifically, the dedicated password generator adds a strength meter and a memorable passphrase mode.
Frequently asked questions
Can I use this for API keys or tokens?
Yes — strings are drawn from your device's secure random source. For passwords specifically, try the password generator, which adds a strength meter.
Can I control the exact characters?
You choose which sets to include; toggle symbols off if a system only accepts letters and numbers.
Is anything sent to a server?
No — generation happens entirely in your browser and nothing is transmitted or stored.