Web Crypto
Selections use cryptographically secure values from the browser.
Secure Random Number Generator
Generate secure integers in a range with optional unique results.
Lists, decisions and results remain on your device.
How to use this randomizer
- 1
Set an integer range, quantity and repetition options before generating.
- 2
Review the list or settings before running the selection.
- 3
Copy or download the result when you need to keep it.
Key features
Local processing
Participants, options and results are not sent to a server.
No public records
The tool does not publish, certify or store a public draw record.
Frequently asked questions
Is the selection random?
Yes. It uses crypto.getRandomValues() with rejection sampling to select integer indexes without modulo bias.
Does Tervix store participants or results?
No. The tool runs locally, and visible history disappears when the page is closed or reloaded.
Is this a certified draw?
No. It is a local utility and does not create an immutable public record or independent certification.