Random Number Generator
Create one or many random integers inside any range. Great for raffles, classroom picks, testing, or creative prompts.
When to Use This RNG
Giveaways & Raffles
Drop participant IDs into a spreadsheet, then assign ranges and pull winners fairly.
Testing & QA
Generate input data for QA teams or pick random records for spot checks.
Brainstorm Prompts
Map numbers to ideas, workouts, or writing prompts to keep creativity fresh.
Education
Teachers can randomly call on students, assign groups, or create math exercises.
How to Get Reliable Random Results
Set a Logical Range
Make sure your min value is less than the max and matches your use case (ticket numbers, IDs, etc.).
Decide on Uniqueness
If you need distinct winners, switch duplicates to “no”. Want dice rolls or lottery balls? Turn repeats on.
Document Results
Use the copy button to paste the draw into meeting notes, Slack, or spreadsheets for transparency.
Frequently Asked Questions
The presets cover up to 10 numbers at once. Need more? Run the generator multiple times or copy/paste into your own workflow.
This tool uses the browser’s Math.random(), which is perfect for classroom, fun, and most business needs. For lottery-grade security, use a dedicated cryptographic RNG API.
If you demand unique results but request more numbers than the size of the range, the generator stops once it runs out of possibilities. Expand the range or allow duplicates.