Generate Random Numbers

Fair, unbiased random numbers are harder to produce by hand than most people think — patterns creep in, favourites get picked, and "shuffled" lists turn out suspiciously ordered. A proper generator removes all of that from the equation.

Generate Random Numbers creates a list of random values within any range you choose. Integers or decimals, with or without repeats, from one number to ten thousand — every run is freshly drawn from a cryptographic-quality source, and the results land in a copyable, downloadable list in milliseconds. Use it for lottery picks, sampling, simulations, classroom draws, password components or just deciding things fairly.

• Any range: Minimum and maximum are completely free — negatives, huge values, tiny gaps.
• Integers or decimals: One toggle switches between whole numbers and decimals with adjustable precision (1–6 places).
• Unique mode: Sample without replacement for lottery-style draws and unbiased group selection.
• Cryptographic randomness: Uses the browser secure random source where available.
• Up to 10,000 numbers: Enough for bulk testing data, simulations and bingo cards.
• Live generation: The list refreshes as you change settings, so you can reroll until the mood strikes.
• Copy or download: One number per line, ready for spreadsheets and documents.
• Free and private: All generation happens locally in your browser — nothing is uploaded or logged.

1. Set the range. Enter the minimum and maximum values. The minimum must be smaller than the maximum.
2. Choose the count. How many numbers you want — up to 10,000.
3. Pick the type. Tick "Whole numbers only" for integers, or untick for decimals and set the precision.
4. Decide on repeats. Tick "All numbers unique" to forbid duplicates. The tool validates that the count fits the range.
5. Read the list. Numbers appear instantly, one per line.
6. Copy or download. Take the list to the clipboard or save it as a text file. Generate again anytime for a fresh draw.

Example 1 — Lottery-style draw. Set the range 1 to 49, count 6, whole numbers, unique. Six distinct numbers, freshly drawn every run — the standard pick-6 pattern used for draws and competitions.

Example 2 — Fair team assignment. Need to assign 30 students random seats or groups? Generate 30 unique integers from 1 to 30 and pair them with the class list in order.

Example 3 — Simulation data. Generating test values for a spreadsheet model? Set min 0.5, max 99.5, count 100, decimals with precision 2 — realistic noisy data for formulas and charts.

Example 4 — Decision helper. Choosing between options 1 and 5? Generate a single integer between 1 and 5 — a coin-flip replacement with more outcomes.

• Actually unbiased: Cryptographic-quality randomness beats hand-picking every time.
• Zero effort draws: Lottery picks and group assignments take one click instead of slips of paper.
• Full control: Range, type, repeats and count are all explicit — no hidden behaviour.
• Bulk ready: 10,000 numbers for testing and simulation in a single run.
• Repeatable workflows: Regenerate as often as needed; each run is a fresh draw.
• Private by design: Everything happens in the browser; nothing is uploaded.