Random number generator
Draw cryptographically secure random integers for games, samples, classroom activities, testing, and everyday decisions.
Three steps.
Zero uploads.
- 01
Enter the smallest and largest allowed values.
- 02
Choose how many results you need.
- 03
Turn on unique results if duplicates are not allowed.
Secure randomness is one part of security.
KeyWoven uses browser cryptography where the tool requires randomness, but it does not certify a system or make any result unbreakable. Unique storage, multi-factor authentication, rate limits, trusted devices, and the policy of the service using the value still matter.
Technical referencesReviewed 7 September 2026 · Method and source checked · Automated tests passed
Random number generator FAQ
Are the numbers truly random?+
KeyWoven uses the cryptographically secure random source supplied by your browser. It is suitable for everyday secure randomness, though it does not certify regulated drawings or gambling.
Can I generate numbers without repeats?+
Yes. Enable unique results. The requested count must fit inside the chosen number range.
Are my results saved?+
No. Results are generated locally and disappear when you leave or refresh the page.