Random number generator

Online random number generator. Easily set ranges, exclusions, and repetitions. Perfect for draws and calculations. Fast and free!

SharkeTools Result

The result will be shown in this section

About Random number generator

Our Random Number Generator tool is a versatile and user-friendly solution designed to meet various user needs. Whether you need to conduct raffles, generate unique numbers for games, or simply want a random number, this application offers the flexibility you seek. You can set a specific range, exclude unwanted numbers, and choose whether to allow duplicates. With an intuitive interface and customizable options, you can quickly and efficiently generate multiple numbers. Plus, it’s completely free and requires no registration. With our tool, the process of generating random numbers becomes a simple and enjoyable task, perfect for any occasion.

Step-by-Step Guide

Setting up your giveaway or numerical sequence takes just a few seconds with this panel:

Step 1: Define your range by entering the lower limit in Minimum number and the upper limit in Maximum number.

Step 2: Specify how many results you need in the Amount of numbers box.

Step 3: Customize the rules. You can use the Exclude numbers field to prevent specific figures from appearing (separated by commas). Additionally, adjust the Options toggles as needed: allow numbers to repeat, use decimals, sort them from lowest to highest, or apply line breaks.

Step 4: Click the blue Generate button. The results will appear in the right text box. Just press Copy to save them to your clipboard.

Key Use Cases

Database Testing: Ideal for developers who need to populate tables with random IDs for testing environments. If your database structure requires indices to start strictly from 1 (to correctly distinguish them from null values in empty cells), you simply set the minimum limit to 1 and generate your list without formatting errors.

Giveaways and Collecting: The perfect tool for selecting random winners in social media dynamics. It is also very useful for probabilistic simulations, such as calculating the drop rate when opening physical or digital blind boxes.

Education and Statistical Analysis: Essential for teachers who need to generate random variables for math exams, or for analysts requiring unbiased data samples for quick statistical models.

This function is vital when you run a giveaway in multiple rounds and a number has already won, or when you are assigning turns and certain positions are no longer available. By entering those numbers in the box, the algorithm completely discards them from the generation.

If the toggle is on, the tool works like rolling a die: the same number can appear multiple times in your result. If you turn it off, it works like drawing cards from a deck: once a number is selected, it is removed from the pool and will not appear again.

You have total control over the presentation. By default, numbers are separated by commas, but you can change this in the Separator box (using dashes, spaces, etc.). If you activate the Line break toggle, each number will appear on its own line, creating a perfect vertical list to copy and paste into Excel.

Discover more tools

SharkeTools Logo

Boost productivity with our easy to use calculators, generators, and more.

© 2026. SharkeTools By Softiny