Math & Calculators•Free & Browser-Based

Random Number Generator

Generate cryptographically random numbers within custom ranges, generate unique non-repeating sets, or roll virtual dice.

Min

Max

Quantity

Career PartnerSponsored

Land 3x More Interviews with AutoResume AI

Scan your resume against 50,000+ job descriptions and beat ATS filters automatically.

Optimize Resume Free →

What is the Free Online Random Number Generator?

The Random Number Generator uses the browser's cryptographically strong `crypto.getRandomValues()` API to yield unbiased, statistically uniform random numbers.

100% Client-Side Privacy: Calculations and data processing occur entirely in your local browser memory. Zero files or personal inputs are uploaded to our servers.

How to Use Random Number Generator Online: Step-by-Step Guide

1Set Minimum and Maximum bounds (e.g. 1 to 100).
2Set desired quantity of numbers to generate.
3Toggle "Unique only" if you do not want duplicate numbers.
4Click "Generate" to roll the numbers.

Related Tools to Random Number Generator

Probability Calculator

Calculate single event probabilities, complementary events, independent event intersections (A AND B), and unions (A OR B).

Math & Calculators

Password Generator

Generate secure, randomized passwords with custom length, symbols, numbers, character exclusion, and entropy strength meter.

Developer Tools

UUID Generator

Generate cryptographically secure RFC 4122 Version 4 UUIDs (Universally Unique Identifiers) in bulk with case and hyphen controls.

Developer Tools

Basic Calculator

A fast, sleek standard calculator for everyday arithmetic with keyboard support, operation memory, and calculation history.

Math & Calculators

Student PartnerSponsored

GitHub Student Developer Pack — $1,000+ in Free Software

Claim free GitHub Copilot, JetBrains IDE licenses, domain names, and cloud credits.

Unlock Student Benefits →