Random Number Generator

Generate cryptographically unbiased random integers or decimal numbers across any range (including zero and negative numbers) with uniqueness and sorting.

Category: Other Utilities

How to Use Random Number Generator

  1. Enter your Minimum and Maximum values (positive, zero, or negative numbers are all supported).
  2. Specify the quantity of numbers to generate (up to 1,000) and whether duplicates are allowed.
  3. Optionally enable Decimal Numbers (1–10 decimal places) and choose Ascending or Descending sort order.
  4. Click Process to generate your random numbers along with Sum, Mean, Median, Min, and Max statistics.

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Frequently Asked Questions

Why does EverySolve's Random Number Generator use Web Crypto instead of Math.random()?

JavaScript's Math.random() uses a predictable xorshift128+ pseudo-random algorithm that is not cryptographically secure. EverySolve uses window.crypto.getRandomValues() seeded by operating-system hardware entropy and applies rejection sampling so every integer in [Min, Max] has an identical probability.

Can I generate random numbers that include zero (0) or negative numbers?

Yes. You can set Minimum Value to 0 (e.g., 0 to 99) or use negative bounds (e.g., -50 to -10 or -100 to 100) for both integer and decimal generation.

How do I generate unique lottery numbers without repeats?

Uncheck 'Allow Duplicate Numbers', set your range (for example, Min = 1 and Max = 49), set Quantity to 6, and set Sort Results to 'Ascending (Lowest to Highest)'. Every drawn integer is guaranteed to be distinct.

What happens if I disable duplicates and request more integers than exist in the range?

If you request 20 unique integers from a range of 1 to 10 (which only contains 10 integers), the generator returns a clear validation message explaining that the range only contains 10 unique integers.

How many decimal places can I generate?

When 'Generate Decimal Numbers' is enabled, you can choose between 1 and 10 decimal places of precision using 53-bit IEEE 754 floating-point cryptographic entropy.