Random number generator

Free Random Number Generator Tool

The Random Number Generator creates unbiased integers or decimals within a range you set. It helps you pick fair results, remove guesswork, and speed up decisions. Use this random number generator when you need quick, reproducible randomness for draws, testing, simulations, games, or data sampling.

What is Random Number Generator?

A Random Number Generator is a utility that produces unpredictable numbers within a defined range, either as whole numbers or decimals. It ensures fairness and eliminates manual bias when selecting values for draws, simulations, or tests. The tool can generate single values or multiple numbers at once.

On Monkey Type, the Random Number Generator is built for speed, accuracy, and repeatability. You can set minimum and maximum bounds, choose the quantity to generate, and decide whether to allow duplicates. Additionally, decimal precision and formatting options give you control over how results appear.

If your goal is to pick winners, sample records, or create randomized datasets, this random number generator answers that need immediately. For related tasks, try the Dice Roller for simulated dice outcomes or the UUID Generator to create unique identifiers.

Why Use Random Number Generator?

• Fair selections without bias: Replace manual picking with an objective random number generator for giveaways, raffles, and classroom activities. It provides impartial results instantly.
• Faster testing and QA: Generate random inputs to test edge cases, load scenarios, or sampling logic. This accelerates development and reduces human error. Pair it with the Password Generator for broader test data.
• Reliable simulations: Run probabilistic models, Monte Carlo tests, or randomized experiments with consistent settings. You can repeat runs by reusing the same configuration.
• Flexible formats: Create integers for indexing or decimals for probabilities and scoring. Export or copy results in a single click for quick workflows, similar to how the QR Code Generator offers fast outputs.

How to Use Random Number Generator on Monkey Type

1. Open the Random Number Generator on Monkey Type.
2. Set the Minimum and Maximum values for your range.
3. Choose the Quantity of numbers you want to generate.
4. Select whether to Allow Duplicates. Turn it off to get unique results.
5. Optionally, set Decimal Precision if you need decimals instead of integers.
6. Click Generate. Your random numbers will appear instantly, ready to copy or export.

Expected result: The tool outputs a list of random numbers that match your range, quantity, and precision. For quick alternatives, use the Coin Flip to make binary decisions or the Random String Generator for non-numeric randomness.

Key Features

• Custom ranges: Define any min–max bounds for integers or decimals.
• Batch generation: Produce one or hundreds of numbers in a single run.
• No duplicates option: Ensure unique results when sampling without replacement.
• Decimal precision control: Set exact decimal places for probabilities or scoring models.
• Copy and export: One-click copy and easy formatting for spreadsheets or scripts.
• Reproducible setups: Reuse the same settings to repeat experiments consistently. For unique IDs, see the UUID Generator.

Best Practices & Tips

• Define strict bounds: Always confirm min and max values to avoid out-of-range results, especially in production tests.
• Choose uniqueness wisely: Disable duplicates when drawing winners; enable them for natural probability simulations.
• Match precision to purpose: Use 0 decimals for IDs and indices; use 2–4 decimals for probabilities or scoring.
• Document your setup: Save your range, quantity, and precision so you can repeat the same randomization later.
• Validate sample sizes: Ensure your quantity fits the range when duplicates are off; otherwise, the generator cannot produce unique values. If you need quick checks, the Timestamp Converter helps verify time-based constraints.
• Use the right random tool: For quick yes/no decisions, try the Coin Flip. For dice-based games, use the Dice Roller.

Common Use Cases

• Giveaways and raffles: Pick winner numbers fairly from a participant list.
• Sampling data: Select random rows for audits and A/B tests without bias.
• Classroom activities: Randomly assign students to groups or presentation slots.
• Gaming and tabletop: Generate encounter indices or loot table selections; complement with the Dice Roller.
• Software testing: Create random inputs for fuzzing and validation; pair with the Base64 Encoder when transforming test data.
• Research simulations: Run Monte Carlo experiments with controlled decimal precision. For identifiers in datasets, see the UUID Generator.

Frequently Asked Questions

Is the Random Number Generator truly random?

The random number generator produces unbiased results suitable for everyday use, testing, simulations, and selections. For most practical needs, its randomness is more than sufficient and avoids human bias.

Can I generate numbers without duplicates?

Yes. Disable duplicates to ensure each number appears only once. Make sure your requested quantity does not exceed the size of your range.

How do I generate decimal numbers?

Set the decimal precision to the number of places you need. The random number generator will produce values with that precision within your specified range.

Can I copy or export the results?

Absolutely. Use the copy or export option to move your random numbers into spreadsheets, scripts, or documents. For other quick outputs, try the QR Code Generator.

What other tools should I use with this?

Combine the random number generator with the Password Generator for secure test data or the Coin Flip for quick binary choices. Monkey Type also offers a Random String Generator for alphanumeric randomness.