Word Counter
Live word, character and sentence counts with a goal tracker.
Open →HomeToolsRandom Number Generator
Free Random Number Generator
Pick a range, choose how many numbers, hit Generate. Unique mode gives you no repeats — perfect for raffles, giveaways and lotteries.
Copied ✓
100% free · No signup · Numbers are generated on your device.
What is a random number generator?
A random number generator picks numbers at random between a minimum and maximum you choose. This one uses your browser's cryptographic random source — the same quality of randomness used for security — and can generate hundreds of numbers at once, with an optional no-repeats mode for raffles and draws.
How to use the random number generator
- Step 1: Set the minimum and maximum for your range.
- Step 2: Choose how many numbers you need.
- Step 3: Turn on 'No repeats' for raffles or lottery picks, then click Generate and copy the result.
Why cryptographic randomness matters
Many online generators use simple math-based randomness, which follows patterns if you know the seed. This generator uses the Web Crypto API (crypto.getRandomValues) built into your browser, with rejection sampling so every number in the range is equally likely — no favorite numbers, no bias toward the middle.
Private by design
Everything runs in your browser with plain JavaScript. Nothing is uploaded, stored or logged — the page keeps working even if you go offline after it loads.
Frequently asked questions
Is this random number generator free?
Yes — completely free, no signup, no limits.
How many numbers can I generate at once?
Up to 10,000 in one click. In no-repeats mode, the maximum is the size of your range.
Can a number repeat?
Only if you leave 'No repeats' off. With it on, every number in the result is unique.
Is it fair for a raffle or giveaway?
Yes — it uses cryptographic randomness with unbiased sampling, so every entry has an equal chance.
Does it work for lottery numbers?
Yes — set the range (for example 1–49), choose how many balls, and turn on 'No repeats' and 'Sort results'.
Short answer: A random number generator picks numbers at random between a minimum and maximum you choose. This one uses your browser's cryptographic random source — the same quality of randomness used for security — and can generate hundreds of numbers at once, with an optional no-repeats mode for raffles and draws.
More free tools
Image Compressor
Shrink JPG, PNG and WebP images without uploading them.
Open →QR Generator
QR codes for links, text and WiFi — PNG and SVG download.
Open →Password Generator
Strong random passwords, generated offline in your browser.
Open →Wifi Qr Code Generator
Share WiFi with a scannable QR code — guests join, no typing.
Open →Character Counter
Count characters with and without spaces, plus words and lines.
Open →Case Converter
Convert text to UPPERCASE, lowercase, Title Case and Sentence case.
Open →Json Formatter
Validate and format JSON — pretty-print or minify, with clear errors.
Open →Color Picker
Pick any color and get its HEX, RGB and HSL codes with one-click copy.
Open →Lorem Ipsum Generator
Generate lorem ipsum placeholder text by paragraphs, sentences or words.
Open →Unit Converter
Convert length, weight and temperature — km to miles, kg to lbs, °C to °F.
Open →Percentage Calculator
Calculate X% of Y, what % X is of Y, and percentage change.
Open →Base64 Encoder Decoder
Encode text to Base64 and decode Base64 back to text, instantly.
Open →Uuid Generator
Generate unique UUID v4 identifiers — one at a time or in bulk.
Open →Url Encoder Decoder
URL-encode text and decode percent-encoded URLs.
Open →Hash Generator
Generate SHA-256 and SHA-512 hashes of any text, in your browser.
Open →Age Calculator
Exact age in years, months and days — plus your age on any date.
Open →BMI Calculator
Check your Body Mass Index and the healthy weight range for your height.
Open →Tip Calculator
Work out the tip and split any bill per person, in seconds.
Open →Discount Calculator
Sale price after % off, how much you save, and the total with tax.
Open →Overtime Calculator
Overtime pay at 1.5× or double time — regular, OT and total pay.
Open →Hourly To Salary Calculator
Convert hourly pay to daily, weekly, monthly and annual salary.
Open →Random Number Generator
Random numbers in any range — one or hundreds, with no-repeats mode.
Open →Remove Duplicate Lines
Delete duplicate lines from any list — order kept, one click.
Open →Word Frequency Counter
Count how often each word appears — with counts and percentages.
Open →Final Grade Calculator
The exact score you need on your final exam to reach your target grade.
Open →