Random Number Generator
Pick truly random numbers in any range. Single number or bulk lists, with full control.
How to Use the Random Number Generator
Set your minimum and maximum bounds — both can be negative, both can be the same, and they can be any whole numbers. Choose how many numbers you want to generate (1 to 10,000). Tick No duplicates if you need unique numbers (like a lottery draw), and Sort ascending if you want them in order. Click Generate and copy the result with one tap.
What Makes the Numbers Random
This generator uses the browser's built-in crypto.getRandomValues() API, which produces
cryptographically strong random numbers from your operating system's entropy source — the same quality used by
password managers and security libraries. It is significantly more random than Math.random() and
suitable for raffles, draws, statistical sampling, and most non-gambling use cases.
Common Use Cases
- Raffles & giveaways: draw a winner from a list of ticket numbers.
- Classroom activities: pick a student number, assign random groups, randomize quiz order.
- Statistical sampling: select random rows from a dataset.
- Game masters: roll custom-range dice for tabletop RPGs.
- Decision making: let chance break a tie when you can't choose.
- Lottery simulations: generate unique number combinations (e.g. 6 unique numbers from 1–49).
- Test data: create random integer datasets for spreadsheets and code.
Why This Is Better Than Other Generators
Many free RNGs use Math.random(), which is deterministic and not truly random. BreezyTools uses the
Web Crypto API for genuine randomness, supports negative ranges, handles bulk generation up to
10,000 numbers, and gives you duplicate-free and sorted modes — all in one tool. Everything runs in your
browser, nothing is logged, and there is no upper request limit.
Frequently Asked Questions
Is this generator truly random?
It uses your browser's Web Crypto API (crypto.getRandomValues()), which pulls entropy from your operating system. This is cryptographically strong randomness — far better than Math.random().
Can I generate negative numbers?
Yes. Set the minimum to a negative value (for example, −50 to 50). The tool handles any integer range.
What if I need unique numbers, like for a lottery?
Tick the "No duplicates" checkbox. The tool will guarantee every number in the result is different. Note: the count cannot exceed the size of the range — for example, you can only get 10 unique numbers from a range of 1–10.
Is there a maximum count?
You can generate up to 10,000 numbers in a single request. For larger sets, run the tool multiple times.
Does anything get sent to a server?
No. The generator runs 100% in your browser. Your inputs and results are never transmitted or stored.
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