Set the range
Enter the minimum and maximum values. Negative bounds work fine.
Text utilities
Random Number Generator
Free online random number generator
Generated numbers
The result will appear here after you run the tool.
Press Ctrl or Command and Enter to run the tool.
About this tool
About this tool
Random Number Generator draws uniformly distributed integers between any two bounds using crypto.getRandomValues with rejection sampling, which avoids modulo bias. It supports counts up to 1000, a unique-values mode, and optional ascending sorting. Numbers are generated entirely in your browser and can be copied or downloaded.
Draw secure random integers for draws, testing, sampling, and game night. Set a minimum and maximum, choose how many numbers you need, and optionally require unique values or a sorted output. The generator uses the browser secure random source, so results are unbiased and never leave your device.
Built for daily work
- Run a fair raffle or giveaway draw.
- Pick random sample indices for testing.
- Create dice rolls or game night numbers.
- Generate test data values in a fixed range.
How to use this tool
How to use this tool
Choose the count and options
Pick how many numbers to draw, and enable unique or sorted output if your task needs them.
Generate and use
Press Generate, then copy the list or download it as a text file.
Key features
Key features
Unbiased integers
Rejection sampling over crypto.getRandomValues produces a uniform distribution without modulo bias.
Unique values
The no-repeats mode suits draws and sampling where duplicates are not allowed.
Large batches
Generate up to 1000 numbers at once for testing and data needs.
Sorting option
Sort the output ascending when order matters, or keep the raw draw order.
Practical use cases
Practical use cases
- Run a fair raffle or giveaway draw.
- Pick random sample indices for testing.
- Create dice rolls or game night numbers.
- Generate test data values in a fixed range.
- Choose a random question or task number.
Private by default
For local tools, input is processed in your browser and is not sent to application analytics.
Data processing noticeTechnical details
Technical details
Random sourcecrypto.getRandomValues with rejection sampling
Batch sizeUp to 1000 numbers
Unique modeOptional, capped by range size
OutputOne number per line, copy or download
Limitations and important notes
Limitations and important notes
- The generator produces integers only, not decimals.
- Unique mode cannot exceed the number of integers in the range.
- Numbers are not stored, so copy them before leaving the page.
Frequently asked questions
Frequently asked questions
They come from the browser cryptographic random generator, which is suitable for draws and sampling. They are not suitable as cryptographic keys by themselves.
Yes. Any integer bounds work, including negative minimums, for example -50 to 50.
The count is capped at the range size, so with bounds 1 to 5 you can get at most 5 unique numbers.
No. They are generated in your browser and only kept on screen until you copy or download them.
Related guides and solutions
Related guides and solutions
What local browser processing means for online tools
A transparent explanation of local tool processing, temporary browser memory, local storage, downloads, analytics boundaries, and cases that require remote services.
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