Random Number Generator

This generator uses Math.random() which produces pseudo-random numbers in your browser. The results are sufficiently random for games, drawings, and everyday decisions. However, for cryptographic or security-critical applications, you should use a cryptographically secure pseudo-random number generator (CSPRNG) instead.

Yes. In the "Multiple" mode, uncheck the "Allow duplicates" option. The generator will then produce unique numbers within your specified range. Note that the count of numbers cannot exceed the size of the range when duplicates are disabled.

The dice roller supports all standard tabletop RPG dice: d4, d6, d8, d10, d12, d20, and d100 (percentile die). You can roll between 1 and 10 dice at once, and the tool displays individual results plus the total sum.

Paste a list of items separated by new lines, then click "Randomize Order." The tool uses the Fisher-Yates shuffle algorithm to produce a uniformly random permutation of your list. This is ideal for assigning random orders, picking winners, or creating random groups.

No. All random number generation happens entirely in your browser using client-side JavaScript. No data is transmitted to any server, and your list items, results, and history are stored only in memory -- they disappear when you close or refresh the page.