What Is a Random Number Generator?
This tool generates one or more random whole numbers within a minimum and maximum range that you choose, with an option to allow or disallow duplicate values across a batch — useful for anything from picking a raffle winner to generating sample data.
Randomness is sourced from your browser's built-in random number generator, giving an even, unbiased distribution across the chosen range.
누가 이 도구를 사용하나요?
비즈니스용
Randomly select a winner from a list of numbered entries.
개인 사용
Pick a random number for a game or decision.
학생용
Generate random sample data for a statistics assignment.
사무실용
Generate random test values within a specific numeric range.
주요 기능
Custom Range
Set any minimum and maximum value, including negative numbers.
Bulk Generation
Generate up to 100 numbers at once, with or without duplicates.
Instant Results
Numbers are generated immediately, with one click.
100% Private
Generated entirely in your browser — nothing is transmitted.
이점
Fair and Unbiased
Every number in the range has an equal chance of being picked.
Flexible Range
Works for small ranges like dice rolls or large ranges like raffle numbers.
No Software Needed
Generate numbers directly in the browser — no spreadsheet formula required.
무작위 숫자 생성기 사용 방법
Set Min, Max & Quantity
Choose the range and how many numbers to generate.
Click Generate
Random numbers appear instantly within your chosen range.
Copy the Result
Use the Copy button to grab the generated numbers.
기술 세부 정보
| 항목 | 값 |
|---|---|
| 입력 | Generated text output, no input required |
| 처리 | Up to 100 numbers per generation |
| 출력 | Uniformly distributed using your browser's random number source |
개인정보 보호 및 보안
이 도구를 사용할 때 파일에 실제로 어떤 일이 일어나는지 알아보세요.
100% Client-Side
This tool runs entirely inside your browser using JavaScript — nothing you type or generate is ever sent anywhere.
No Upload, Ever
There is no file upload and no server processing step — your data never leaves your device.
Works Offline
Once this page has loaded, the tool keeps working even without an internet connection.
Nothing Stored
Nothing you enter is saved on our servers — refreshing the page clears everything.
No Tracking of Your Input
We have no way to see what you type, generate or convert with this tool.
팁
Disable Duplicates for Raffles
Turn off "allow duplicates" when picking unique raffle or lottery numbers.
Use a Wide Range for Better Randomness Perception
A wider range makes patterns less noticeable across a generated batch.