Random Number Generator
Generate truly random numbers using cryptographically secure Web Crypto API. Perfect for gaming, lottery, cryptography, and scientific applications requiring genuine randomness
Generator Settings
Generated Numbers
Ready to Generate
Configure your parameters and click "Generate Random Numbers" to get started.
Statistics
About True Random Number Generator
Our true random number generator uses cryptographically secure Web Crypto API to generate genuinely unpredictable random numbers. Unlike pseudo-random number generators (PRNGs) that use mathematical algorithms, our tool leverages your browser's built-in cryptographic entropy source for true randomness.
Key Features
- Cryptographically secure true random generation using Web Crypto API
- Customizable range (any integer values)
- Generate up to 10,000 true random numbers at once
- Option to allow or prevent duplicates
- Automatic statistics calculation
Use Cases
- Gaming and lottery number selection requiring true randomness
- Scientific research and statistical sampling
- Decision making and unbiased random selection
- Secure password and cryptographic token generation
- Statistical analysis and testing with genuine randomness
How It Works
Our true random number generator uses the Web Crypto API's <code class="bg-gray-100 px-2 py-1 rounded">crypto.getRandomValues()</code> method, which provides cryptographically strong random values directly from your browser's entropy pool. Unlike pseudo-random generators (PRNGs) that use deterministic algorithms, our tool generates truly unpredictable numbers suitable for cryptography, security applications, and any scenario requiring genuine randomness.
The generator supports both inclusive and exclusive ranges, handles negative numbers, and provides options to prevent duplicates when generating multiple numbers. All calculations are performed client-side using your device's hardware entropy sources for maximum privacy and cryptographic security.
Privacy Notice: All true random number generation happens locally in your browser using Web Crypto API. No data is sent to our servers, ensuring complete privacy and cryptographic security of your generated numbers.