Free random number generator. Generate a random number between any minimum and maximum instantly. Also includes multiple number generation, a dice roller and a lottery number picker. No sign up needed, works entirely in your browser.
How to Use This Random Number Generator
This tool has four modes. Select the mode you need from the tabs at the top. Press Generate or press the Space bar or Enter key on your keyboard to generate instantly.
The Number mode generates a single random number between any minimum and maximum you choose. Enter your range and the number appears instantly.
The Multiple mode generates between 2 and 20 random numbers at once. You can choose to exclude duplicates and sort the results from lowest to highest.
The Dice mode rolls one or more six sided dice and shows the result using real dice face symbols. Use the plus and minus buttons to roll up to 10 dice at once.
The Lottery mode picks a set of lottery numbers. Choose from US Powerball, Mega Millions, UK Lotto or set a custom range. Includes bonus ball for Powerball and Mega Millions.
What Is a Random Number Generator
A random number generator is a tool that produces numbers with no pattern or predictability. Each number generated is completely independent of the previous result. This tool uses your browser’s built in random number function which produces truly unpredictable results suitable for games, decisions, raffles and any situation where fairness matters.
What Can You Use a Random Number Generator For
Random number generators are used in many everyday situations. You can use one to pick a winner in a raffle or giveaway by assigning each entry a number and generating a random number within that range. Teachers use random number generators to pick students to answer questions fairly. Gamers use dice rollers for tabletop and board games. People use lottery number pickers to choose their entries for the week. Random numbers are also used for games, decision making, sampling, classroom activities, sports draws, secret santa assignments and any situation where a fair unbiased choice is needed.
How to Pick a Raffle Winner
Assign a number to each entry starting from 1. Enter 1 as the minimum and the total number of entries as the maximum. Click Generate. The number shown corresponds to the winning entry. This method is completely fair and unbiased.
How to Roll Dice Online
Select the Dice tab at the top. Use the plus and minus buttons to choose how many dice to roll. Click Roll Dice or press Space or Enter. The result shows using real dice face symbols with the total at the top.
How to Pick Lottery Numbers
Select the Lottery tab. Choose your lottery from the preset options — US Powerball, Mega Millions or UK Lotto — or use the Custom option to set your own range. Click Pick Lottery Numbers and your numbers are displayed as coloured lottery balls. A bonus ball is automatically included for Powerball and Mega Millions.
Frequently Asked Questions: FAQs
Are these numbers truly random? Yes. This tool uses the browser’s built in random number function which produces cryptographically unpredictable results. Each result is completely independent of the previous one.
Can I generate the same number twice? In single number mode yes, the same number can appear on consecutive generates. In multiple number mode you can tick the No Duplicates option to ensure each number in the set appears only once.
What is the range I can use? You can enter any minimum and maximum value. There is no fixed limit — you can generate numbers between 1 and 1000000 or any other range you need.
Can I use this for a giveaway or competition? Yes. Assign a number to each entry and use the Number mode to pick a winner. The result is completely random and unbiased.
Is this random number generator free? Completely free. No sign up, no login, no limits.
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Last updated: March 2026 · Free tool by AllTheTools.com