How are random numbers generated?
The tool uses the browser's Math.random() function seeded with system entropy to produce uniformly distributed random integers in your chosen range.
Random Number Generator Free - Any Range Online
Free online random number generator to generate single or multiple random numbers within any range. Set min, max, and quantity. Browser-based, no login, instant results.
About this tool
Choosing a random winner, making a decision, running a raffle, or testing an application all require genuinely unpredictable numbers. This generates them with cryptographic randomness - not the pseudo-random sequences that JavaScript Math.random() produces.
Generate one or more random numbers within any range - from a simple 1–10 pick to generating 100 numbers between 1 and 1,000,000. Optionally prevent duplicate numbers in a single draw.
How to use Random Number Generator
- Step 1: Set Range. Enter the minimum and maximum values for your random numbers.
- Step 2: Set Quantity. Choose how many random numbers you want to generate.
- Step 3: Generate. Click generate to produce random numbers within your range.
- Step 4: Copy Results. Copy individual numbers or click Copy All to grab the full list.
Where this tool helps
Pick a random winner from a numbered list of entries, generate numbers for a raffle or lottery draw, make a random selection when a decision is too close to call, generate random data for software testing, pick a random page number to start reading from, select a random team member for a task, and generate PIN-like number sequences.
- Configurable range: set minimum, maximum, and quantity of numbers to generate.
- No-repeat option: generates unique numbers without duplicates - useful for lotteries and draws.
- All numbers generated in your browser using the Web Crypto API for true randomness.
The most common question is whether these numbers are truly random. Yes - this uses the Web Crypto API's getRandomValues() function, which produces cryptographically secure random numbers unlike Math.random(), which is a deterministic pseudo-random algorithm unsuitable for security or fairness-critical applications.
How to Use Random Number Generator Converter
Set Range
Enter the minimum and maximum values for your random numbers.
Set Quantity
Choose how many random numbers you want to generate.
Generate
Click generate to produce random numbers within your range.
Copy Results
Copy individual numbers or click Copy All to grab the full list.
FAQs
Common questions about this tool and how to use it.
Can I generate negative random numbers?
Yes. Set the minimum value to a negative number and the generator will produce random integers within that range.
How many numbers can I generate at once?
You can generate up to 100 random numbers in a single click and copy them all to your clipboard.
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