Integer Set Generator
Create collections of unique integers with no repetitions
Security Note: This tool uses cryptographically secure randomization. For cryptographic applications, verify the generated sets meet your specific security requirements.
Generation Method
Advanced Options
Output Format
Generated Integer Set
Use Cases for Integer Sets
Testing & Development
- Unique test case identifiers
- Sampling from large datasets
- Generating mock database keys
Statistics & Research
- Randomized control trials
- Stratified sampling
- Experimental design
Generation Methods Explained
Random Selection
Each number has equal probability of being selected. Uses Fisher-Yates shuffle with cryptographically secure randomization for unbiased results.
Sequential
Produces ordered sets from your range. Useful when you need consecutive numbers or want to avoid clustering.
Stratified
Divides the range into equal segments and selects from each, ensuring even distribution across the entire range.
Frequently Asked Questions
How are duplicates prevented?
The generator automatically checks for and eliminates duplicates using efficient algorithms. For random selection, we use reservoir sampling when the set size is much smaller than the range.
What's the maximum range size?
You can specify any range within JavaScript's safe integer limits (±9 quadrillion). Performance is best with ranges under 1 million numbers.
Can I generate multiple sets at once?
Currently the tool generates one set at a time. For multiple sets, simply generate and copy/download each set separately.
How does the prime number filter work?
When enabled, the generator first creates a list of primes in your specified range, then selects from those. Uses the Sieve of Eratosthenes algorithm for efficiency.
Are the sets truly random?
Yes, when using random selection mode we use the Web Crypto API for cryptographically secure random number generation, not Math.random().