RANDOM.ORG vs Random Number Generator

All randomness wasn't created equal. This app offers certified true randomness, generated with atmospheric noise and independently approved by several testing labs. (See sample certificate from eCOGRA.) You can use our randomizers for free and without ads in this official app. If you would like to support our free services, you can do so by making a donation through our website: https://www.random.org/donate - Coin Flipper with 100 different coins from Ancient Rome to 27 modern currencies - Dice Roller to roll up to six regular dice in one go - Card Shuffler to shuffle playing cards and draw them one at a time - Lotto Quick Pick with more than 170 lotteries from all around the world - Integer Generator to generate true random numbers in configurable intervals - List Randomizer to create and randomize your own lists of items RANDOM.ORG was founded in 1998 and generates certified true randomness from atmospheric noise, which for many purposes is better than the pseudo-random numbers typically used in computer programs. Our mission is the generate the highest quality true randomness and make it available to the world in useful forms.

A simple and elegant way to generate random numbers. Enjoy the rotating colors as you generate new numbers. If the colors are too much for you, then you can just turn them off in the settings screen, as this app is fully configurable. Sounds and vibration can also be turned on in the settings screen, which will allow you to hear a sound and feel the device vibrate as you generate new numbers. If you need to copy the generated number to the clipboard so that you can paste it into another app, then simply tap on the generated number. The generated numbers, along with the date and time that the number was generated and the values of what the min and max were, are saved to the history which can be accessed at any time until it is cleared. If you need to prevent duplicates from being generated, simply turn on the ‘Prevent Duplicates’ feature in the settings screen.