Why use this generator?
- Integers or decimals with optional decimal places and ascending sort.
- Seed support for reproducible lists and lesson handouts.
- Unique-only mode for integers with range validation.
- Copy-ready output with a quick status summary.
Set your range and options
Choose integer or decimal mode, set range, count, and seed. Keep everything aligned so you can verify and reuse results quickly.
Results
Tips
Use seeds to reproduce the same list later or to share with students. If you only need one decimal, reduce Decimal places to minimise rounding noise.
Unique mode is available for integers only. Widen the range or lower the count if you see a range warning.
Frequently asked questions
How do seeds affect the generated numbers?
When you enable a seed, the generator uses a repeatable pseudo-random sequence so the same inputs produce the same output list. Leave seed blank to auto-fill with a timestamp for quick sharing.
How can I avoid duplicates?
Turn on Unique values only while in Integer mode. If the requested count exceeds the integer range, the tool will warn you so you can widen the range or lower the count.