What is Lotto Number Generator?
This lotto number generator is a free online tool that randomly selects 6 numbers from 1 to 45. It features a fun animation where balls mix in a drum and pop out one by one, just like a real lottery machine.
With fixed & excluded numbers, up to 5 sets at once, quick draw mode, and historical winning number checker — it's your all-in-one lotto helper.
Key Features
Random Generation
Generate 6 random lotto numbers with a single click. Choose realistic drum animation or instant quick draw mode.
Fixed & Excluded
Fix specific numbers (up to 5) to always include, or exclude numbers you want to avoid in your combination.
Multi-Set Generation
Generate 1-5 sets at once. Check multiple games simultaneously, just like a real lotto ticket.
Winning Checker
Enter your numbers and instantly check how they match against all historical draws.
Statistics
View frequency analysis for each number across all draws, with hot/cold number indicators.
Auto Update
Latest winning numbers are automatically updated after each Saturday draw.
How to Use
- Select Fixed/Excluded Numbers — Set numbers to include or exclude (optional).
- Set Games & Mode — Choose 1-5 sets and toggle quick draw mode on/off.
- Draw Numbers — Press START to generate numbers with animation.
- Check Winning — Enter your 6 numbers and compare against historical draws.
- View Statistics — Check number frequency and hot/cold indicators at the bottom.
Use Cases
Weekly Lotto Purchase
Instead of agonizing over numbers, set your fixed/excluded numbers and quickly generate 5 sets.
Group Purchase
Generate multiple sets at once and share them instantly to your group chat.
Statistical Analysis
Reference hot/cold numbers and historical frequency to develop your own number strategy.
Historical Lookup
View all historical winning numbers, prize amounts, and winner counts at a glance.
Winning Odds
The odds of winning the Korean Lotto 6/45 jackpot are 1 in 8,145,060. Second prize (5+bonus) is about 1 in 1,357,510, third prize (5) is about 1 in 35,724, fourth prize (4) is about 1 in 733, and fifth prize (3) is about 1 in 45.
Frequently Asked Questions
How does the lotto number generator work?
It randomly selects 6 numbers from 1 to 45. Fixed numbers are always included, and excluded numbers are never selected.
What are fixed and excluded numbers?
Fixed numbers (up to 5) are always included in results. Excluded numbers are never selected. You can use both simultaneously.
How do I generate multiple sets?
Select the number of sets (1-5) using the set count buttons, then press START to generate all sets at once.
How do I check my winning numbers?
Enter your 6 numbers in the Winning Checker section and press Check. It will show all historical draws where 3+ numbers matched.
What is Quick Draw mode?
Quick Draw skips the drum animation and shows results instantly. Useful when generating numbers quickly and repeatedly.
What are hot/cold numbers?
Hot numbers (🔥) are the top 10% most frequently drawn. Cold numbers (❄️) are the bottom 10% least drawn. These are for reference only.
What are the odds of winning the jackpot?
The odds of winning Lotto 6/45 jackpot are approximately 1 in 8,145,060. You need to match 6 numbers out of 45, regardless of order.
Are generated numbers saved?
Yes, the last 20 generation records are automatically saved in your browser's localStorage. Nothing is sent to external servers.
Privacy Notice
All number generation, fixed/excluded settings, and generation history are processed entirely in your browser (localStorage). Nothing is sent to any external server. Winning history data is retrieved from a public API.