Random Number Generator

Enter the Minimum and Maximum. The default range is 1 to 100, with one whole number per draw.

Set the Count, Decimal places, Result order, and Unique values options before generating. Select Generate number or Generate numbers to draw your result.

After the first successful draw, the settings collapse. Select Generate again for another draw with the same settings, or Edit to change them. Use the copy icon in the result box to copy one value or the full list.

In whole-number mode, the range includes both endpoints. A draw from 1 to 100 can return 1, 100, or any integer between them.

Negative ranges and intervals crossing zero work the same way. For example, -5 to 5 contains 11 eligible integers, including zero.

The minimum must not exceed the maximum. If both bounds are the same and the value is supported, that value is the only possible result.

Set Count to any whole number from 1 to 1,000. With Unique values off, each draw uses the entire eligible range, so duplicates and streaks are possible.

Turn Unique values on to sample without replacement: a value can appear only once in that result. The range must contain at least as many eligible values as the requested count.

Uniqueness does not carry over to the next generation. Each time you select Generate again, the tool makes a fresh draw from the original range.

Choose 1 to 6 decimal places to draw from a fixed grid. Two places mean steps of 0.01; the generator selects one of those values instead of drawing an arbitrary fraction and rounding it afterward.

Only grid values inside your range are eligible. With a minimum of 1.123, a maximum of 1.138, and two decimal places, the only possible result is 1.13. Neither 1.12 nor 1.14 is inside the range.

The result keeps the selected display precision. With two decimal places, a drawn value of 2.5 appears and copies as 2.50.

Every eligible value has an equal theoretical chance on a single draw. A range of 1 to 100 therefore gives each integer a 1% chance.

If repeats are allowed, the previous result does not affect the next draw. When drawing unique numbers, each eligible value has the same chance of appearing in the finished sample, but cannot occur twice in that sample.

Random results do not have to look evenly spread across a small number of draws. Repeated numbers are normal when uniqueness is off.

Generated order preserves the sequence in which values were selected. Choose Ascending or Descending to reorder the completed list numerically.

Sorting does not change which values were drawn. To randomize the order of all integers in a short range, request the full count of unique values and leave the result in Generated order.

The generator uses the browser's Crypto.getRandomValues() through shared random-number helpers, rather than Math.random(). It maps the resulting random integers onto the eligible range using rejection sampling so the remainder of an uneven division cannot favor certain values.

For very large supported ranges, the helpers use a 53-bit selection method. The tool does not expose a seed, save random-generator state, or create independently verifiable records.

JavaScript numbers cannot distinguish every integer at arbitrary magnitudes. Whole-number bounds must be safe integers; decimal bounds must also form a supported scaled grid with distinguishable results.

A range that is too large, too finely spaced, or contains no value at the chosen precision is rejected rather than producing misleading results. Reducing decimal places or choosing smaller bounds may help.

Numbers are generated locally in your browser and are not stored by the tool. Copying places them on your clipboard. For official lotteries, regulated selections, cryptographic secrets, or work requiring a reproducible or independently auditable draw, use a system designed for that purpose.