Random Number Generator

In reality, the majority of random numbersused in computer programs is pseudo-random that is to say they are created according to a set pattern with the mathematical formula. This is fine for various purposes, but it might not be random in the manner you expect if you're used to lottery rolls or dice drawings.

RANDOM.ORG provides genuine random numbersto anyone who is on the Internet. The randomness is due to atmospheric noise, which for various reasons is superior to the false-random numberalgorithms usually used in computer applications. It is used by people to RANDOM.ORG to host drawings, lotteries and sweepstakes, as well as to power online games, to support applications in science and arts and music. The website has been operational since 1998 and was built by Dr Mads Haahr, who is from the School of Computer Science and Statistics at Trinity College, Dublin in Ireland. Today, RANDOM.ORG is operated by Randomness and Integrity Services Ltd.FREE services

Games and Lotteries

Lottery Quick Pick is perhaps the most played game on the internet with more than 300 lotteriesKeno Quick Pick for the popular game, which is played across many countries.
Coin Flipper will provide you with heads or tails in a wide range of different currencies.
Dice Roller does exactly what it claims on the tin
A Playing Card Shuffler draws cards drawn from a variety of shuffled decks
Birdie Fund Generator will create birdie holes for golf courses
PAID service

Random Drawings

Q3.1 in the FAQ describes how to select a winner from your giveaway.
The Third Party Draw Service can be described as the most effective solution for holding random drawings online
Step-by-Step Guide to holding a drawing using the Third Party Draw Service
Step-by-Step Video demonstrates how to hold a drawing using the Third-Party Draw Service
Price Calculator tells exactly how much drawing cost
Drawing FAQ addresses common concerns about holding drawings
Public Records show all drawn and completed drawings dating back five years
Drawing Results Widget can be utilized to show these winners onto your web page
Multi-Round Prize Service for verified video giveaways
FREE services

Numbers

Integer Generator generates random numbers in different intervals.
Sequence Generator randomly generates an integer sequence of your choosing
Integer Generator generates numbers that are non-repeating.
Gaussian Generator creates random numbers to fit a normal distribution
Decimal Fraction Generator makes numbers within the [0,1] range with decimal decimal places configurable
Raw Random Bytes are useful to many purposes in cryptography
FREE services

Lists and Strings and Maps, Oh My!

List Randomizer can randomly select a list of any information you've got (names or phone numbers, etc.)
String Generator generates random strings of alphanumeric characters
Password Generator provides safe passwords for Wi-Fi network or your Gmail account.
Clock Time Generator will select random times during the day.
Calendar Date Generator can pick random dates from nearly three and one-half millennia
Geographic Coordinate Generator will pick any random location on our planet's surface
Bitmaps in white and black
Hexadecimal Color Code Generator can choose color codes, for instance, for use in web colors
Pregenerated Files include a large amount of random bits for downloading
Pure White Audio Noise for the composition of your audio tracks or simply for testing your equipment
Jazz Scales to learn Improvisation for students of jazz guitar
Samuel Beckett's random-generated short prose
DNA Protein Sequence Randomizer (at Bio-Web)FREE services

Web Tools and Widgets for Your Pages

An Integer Widget Wizard will put a mini-RANDOM.ORG on your web page or blog
The Draw Widget Wizard will publish the results of a paid drawing on your site or blog
HTTP API that allows you to insert real random numbers into your own code
Guidelines describe how to avoid being in trouble
Lists of banned hosts who didn't behave and were banned.

Learn more about Randomness

Introduction to Randomness describes what random numbers are and why they're interesting
The story of the way RANDOM.ORG was created and where it is today
Many Testimonials from folks who have found amazing ways to use random numbers
We would like to thank all the generous people who have offered to help
Quotes about randomness in the sciences, the arts, and even in life generally.
Media coverage and Scientific Citations lists popular print and scientific mention of the service
News about the most recent updates to the website

Statistics

Real-Time Statistics show how the generator is doing right now.
Statistical Analysis explains how you examine random numbers for randomness
Bit Tally is a good indicator of how much randomness has been generated since 1998 (hint that: lots!)
Your Quota will tell you the amount of random bits that you have left to today

Contact and Help

FAQ answers frequently asked questions.
The newsletter comes out at random intervals If you want to be notified, sign to receive it.
Contact Details in case you'd like to contact us.

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