Random Number Generator
Generate one or many random numbers within any range you choose.
About Random Number Generator
This random number generator uses the browser's cryptographically seededMath.random() function to produce uniformly distributed integers within your chosen range. Generate a single number for quick decisions or up to 1,000 numbers at once for datasets, testing, or lottery simulations.
Enable the No duplicates option to draw unique numbers from the range — ideal for lottery picks, random sampling without replacement, or seating assignments. The result set can be copied as a comma-separated list with one click.
Common use cases include games, raffles, research sampling, A/B test group assignment, and generating random test data for software development. All processing happens in your browser.