What does this random number generator do?

This random number generator creates a list of integers in a custom range. You can choose the minimum, maximum, quantity, whether numbers must be unique, and whether to sort the result.

Is the randomization done in my browser?

Yes. All randomization happens directly in your browser using JavaScript. The values you generate are not uploaded to a server or stored by ToolDeskHub.

Can I generate unique random numbers?

Yes. Turn on the unique option to avoid duplicates. If you request more unique numbers than the size of the range, the generator will show an error so you can adjust the settings.

What can I use random numbers for?

You can use random numbers for test data, samples in spreadsheets, classroom exercises, simple experiments, mockups, picking order, and small simulations. Many people also use them to shuffle items or pick winners from a list.

Is this random enough for cryptography or security?

No. This tool is not meant for cryptographic or security-sensitive use. For passwords, secure tokens, or gambling systems, you should use a dedicated security library or platform designed for cryptographic randomness.

Does this tool support decimals or only integers?

The current version focuses on whole numbers (integers). If you need decimals or floating-point values, you can generate integers here and then scale or convert them in a spreadsheet or script.

Can I Generate Multiple Random Numbers at Once?

Yes. Set the quantity you need and click Generate numbers. Use the unique numbers option if you want no repeats within that set.

ToolDeskHub · Free utility

Random Number Generator – Generate Numbers Between Any Range

Pick a number between any range—1–10, 1–100, or custom min and max. This free random number generator lets you choose unique numbers (no repeats) for raffles, giveaways, games, and testing. Browser-based; no data is sent to a server.

A random number picker online for classrooms, contests, and development. Generate random numbers without repeats when you need fair, transparent selection.

Configure your random numbers

Set the range, quantity, and options, then generate a list of random numbers you can copy into a spreadsheet or script.

Tip: Decide if you need unique numbers (sampling without replacement) or if duplicates are fine. Unique numbers are useful for tickets, IDs, and positions in a list.

Random number list

View, copy, or export the generated numbers.

Click Generate numbers to create a list here. You can reuse the tool as many times as you like.

How this random number generator works

Enter a minimum and maximum integer for the range.
Choose how many random numbers you want to generate.
Decide if duplicates are allowed and whether you want the list sorted or in original draw order.
Click Generate numbers to create the list in your browser.
Copy the random numbers and paste them into your spreadsheet, code, classroom worksheet, or test script.

The generator uses the standard random features in your browser. It is great for light everyday use. For scientific research, large simulations, or security-critical systems, consider using specialised libraries that match your project's requirements.

Random Number Generator Between 1 and 10

Set min to 1 and max to 10 for a small range. Ideal for dice-style choices, quick yes/no style picks (e.g. 1–5 no, 6–10 yes), and simple games. Example: one number from 1 to 10, or several for a short sequence.

Range: 1 to 10

Generated numbers: 3, 7, 1, 9

Random Number Generator Between 1 and 100

Set min to 1 and max to 100 to get a random number between 1 and 100. Useful for classroom games, quick picks, and simple simulations. Example: generate 4 numbers for a small draw.

Range: 1 to 100

Generated numbers: 42, 17, 88, 5

Random Number Generator Between 1 and 1000

Use min 1 and max 1000 for a wider range. Good for three-digit ticket or ID samples, larger raffles, and classroom exercises with bigger sets. Enable unique numbers to avoid repeats when drawing many values.

Range: 1 to 1000

Unique numbers: 234, 891, 47, 656

Random Number Generator Without Duplicates

Turn off "Allow duplicate numbers" to get unique random numbers. Each value appears at most once—ideal for raffles, ticket draws, and sampling. For ordered sequences (e.g. product IDs), use our Serial Number Generator.

Range: 1 to 100

Unique numbers: 12, 45, 89

Random Number Generator for Classroom Activities

Use this tool for fair student selection, group work order, or picking who answers next. Set the range to your class size (e.g. 1–30), enable unique numbers so no one is picked twice, and generate. Transparent and easy for students to understand.

Random Number Picker for Raffles and Giveaways

Use this random number picker online for fair selection. Set the range to match your entrant count, enable unique numbers, and generate. For giveaways that include QR codes or links, pair with our QR Code Generator.

How Does a Random Number Generator Work?

This tool uses the browser's built-in pseudo-random algorithm. Each number is chosen with equal probability within the range. Generation runs locally—no server involvement—so results are instant and private.

Is This Random Number Generator Truly Random?

It uses pseudo-randomness (algorithm-based), not true randomness from hardware. For raffles, games, and everyday use, it is fair and unbiased. For cryptography or security, use a dedicated source; for strong passwords, use our Password Generator.

Random Number Generator for Lottery (Disclaimer)

This tool is for fun, education, and light use (e.g. classroom or small giveaways). It is not a lottery prediction tool and is not intended for regulated gambling or high-stakes systems.

Common ways to use a random number generator

An online number generator is useful whenever you need a quick, unbiased choice and do not want to pick by hand. A few examples:

Generate random IDs or ticket numbers for prototypes and demo data.
Pick students, questions, or tasks in classrooms in a transparent way.
Shuffle the order of people in a list to assign seats or presentation slots.
Create random data for charts, UX mockups, or basic testing in spreadsheets.
Run small probability experiments for teaching statistics or maths concepts.

Random Number Generator FAQ

What does this random number generator do?: This random number generator creates a list of integers in a custom range. You can choose the minimum, maximum, quantity, whether numbers must be unique, and whether to sort the result.
Is the randomization done in my browser?: Yes. All randomization happens directly in your browser using JavaScript. The values you generate are not uploaded to a server or stored by ToolDeskHub.
Can I generate unique random numbers?: Yes. Turn on the unique option to avoid duplicates. If you request more unique numbers than the size of the range, the generator will show an error so you can adjust the settings.
What can I use random numbers for?: You can use random numbers for test data, samples in spreadsheets, classroom exercises, simple experiments, mockups, picking order, and small simulations. Many people also use them to shuffle items or pick winners from a list.
Is this random enough for cryptography or security?: No. This tool is not meant for cryptographic or security-sensitive use. For passwords, secure tokens, or gambling systems, you should use a dedicated security library or platform designed for cryptographic randomness.
Does this tool support decimals or only integers?: The current version focuses on whole numbers (integers). If you need decimals or floating-point values, you can generate integers here and then scale or convert them in a spreadsheet or script.
Can I Generate Multiple Random Numbers at Once?: Yes. Set the quantity you need and click Generate numbers. Use the unique numbers option if you want no repeats within that set.

More free online tools

Use other tools on ToolDeskHub to generate test data, IDs, and supporting content for your projects.

Serial Number GeneratorBuild simple serial IDs with prefixes and counters.Password GeneratorCreate strong, random passwords with custom rules.QR Code GeneratorTurn text or links into QR codes you can download.JSON Formatter & ValidatorFormat and validate JSON payloads in your browser.Image ConverterConvert images between common formats online.SEO Title & Meta DescriptionDraft simple titles and descriptions for pages.

Note: this random number generator is for educational and general use. It is not designed for high-stakes gambling systems or cryptographic applications.