Random number generator online

A random number generator draws values by chance within limits you set. This number generator supports inclusive minimum and maximum bounds, batch output for spreadsheets, and a one-click picker that behaves like a dice roller when your range is 1–6.

Unlike toy scripts that rely on Math.random(), this rng generator uses crypto.getRandomValues — the same API browsers expose for security-sensitive work. That makes it a practical generator of random numbers for giveaways, QA fixtures, and classroom demos.

You can generate numbers as integers or decimals, request unique values without duplicates, and copy results instantly. Need alphanumeric tokens instead? Switch to the Random String Generator — numbers and strings are separate tools so each page stays focused.

Set Min and Max to your range. For a standard die, use 1 and 6, open Dice roller / picker mode, and click Roll. For a list of random numbers, stay in Generate numbers mode, set Count, and press Generate.

Decimal mode lets you produce fractional values with a chosen number of decimal places — useful for simulations, pricing drafts, or science homework where integers are too coarse.

Unique mode samples without replacement: every value in the batch differs. You cannot draw more unique integers than exist in the range — widening Min/Max fixes that error.

Results appear in the output panel. Copy the comma-separated list or the single highlighted pick. Refreshing the page clears history; save anything you need for audit trails.

Many sites label themselves a randomizer number or numbers generator but use predictable PRNGs. For informal games that is usually fine; for anything resembling a lottery or security token, prefer crypto-backed draws.

This rng generator is a random number generator website that never sends your range or results to a server. That privacy model matches how teams search for a random number generator online free and secure.

If you searched give me a random number or a random number between two values, the picker mode is the fastest path: two bounds, one click, one result on screen.

Tabletop players often look for a dice roller or roller dice when they forgot physical dice. Map d6 to 1–6, d20 to 1–20, or percentile rolls to 1–100 with the same controls.

Board-game house rules sometimes need custom ranges — reroll on doubles, cap totals, or draw from a shrinking pool with unique mode enabled.

Teachers can project the picker for classroom activities: random student order, problem selection, or team assignment without bias accusations.

QA engineers paste batches of random numbers into load tests, shuffle seeds, or synthetic datasets. Set Count up to 10,000 integers per run for volume without leaving the tab.

Analysts generating sample weights or lottery simulations can combine decimal mode with wide ranges. Export by copy — no CSV download required, though paste into Excel respects comma separation.

For reproducible unit tests in code, stub RNG in your test suite instead of this page — browsers do not expose deterministic seeds here.

crypto.getRandomValues runs locally. Your ranges, counts, and outputs are not logged or stored on our servers. Clear the output on shared machines when finished.

Pair with our Random String Generator when you need create random string workflows, test passwords, or API placeholders. Numbers stay on this page; strings stay on theirs.

Regulated lotteries require audited hardware and legal process — treat this tool as informal, and document time and range when recording contest results.