Random String Generator
Tokens, IDs and test strings.
Runs on your device
At a glance
- Processing:
- Runs locally in your browser
- Privacy:
- Your files stay on your device — nothing is uploaded to a server
About this tool
Build random tokens with the exact alphabet you need — hex, alphanumeric, URL-safe or fully custom — with optional prefixes and bulk generation.
How to use it
- Choose an alphabet or define your own.
- Set length and count.
- Generate and copy.
Frequently asked questions
Is my data uploaded?
No. Random string generation runs entirely in your browser — nothing leaves your device.
How is this different from the password generator?
Passwords optimize for memorability rules and strength meters; this tool optimizes for developer tokens — custom alphabets, prefixes and bulk output.
What does URL-safe mean?
An alphabet that needs no percent-encoding in URLs (letters, digits, hyphen, underscore). Use it for tokens that travel in links or query strings.