Random Number Generator

Generate random integers or decimals for any purpose

Number Settings

No numbers generated yet. Click "Generate Numbers".

True Randomness

Uses cryptographically strong pseudo‑random algorithm

Flexible Ranges

Any lower/upper limit with integer or decimal output

Bulk Generation

Generate up to thousands of numbers at once

Privacy First

All generation happens locally – no data sent

Online Free Random Number Generator

Generate random integers or decimals for simulations, games, statistical sampling, or any other need.

Pro Tip: For truly unpredictable results, use the "Integer" output with a wide range and avoid duplicate removal if order matters.

Why Use a Random Number Generator?

Gaming & Contests

  • Fairly select winners or participants
  • Generate random loot drops or game events
  • Simulate dice rolls or card draws

Data Science & Testing

  • Create random datasets for testing
  • Perform Monte Carlo simulations
  • Random sampling for surveys

How It Works

Our generator uses a high‑quality random algorithm (crypto‑strong where available) to produce numbers according to your criteria:

1

Define Range & Type

Set lower and upper bounds, choose integer or decimal, and precision for decimals.


2

Apply Additional Constraints

Specify count, allow/reject duplicates, and choose sort order.


3

Generate & Display

The algorithm produces numbers instantly, respecting all your settings.

Frequently Asked Questions

Use Cases
  • Randomizing survey participants
  • Generating test data for databases
  • Simulating dice rolls or card shuffling
  • Creating unique IDs or session tokens
Statistical Notes
  • For uniform distribution, use a wide range
  • For random sampling, ensure duplicates are allowed if needed
  • Decimal precision up to 6 places recommended for most use cases