Set the Min value
Enter the lowest number you want. Can be 0, 1, or any negative number — the range is fully flexible.
Random Number Generator
between any Min and Max.
Enter a range, click Generate — get a random integer instantly. Works for games, decisions, lottery picks, and developer testing. No signup, no ads, runs entirely in your browser.
- Anyrange supported
- Instantone click
- 100%browser-side
- Freeforever
Random Number Generator
Set your range and click Generate
How to use the Random Number Generator
Set the Max value
Enter the highest number. Both Min and Max are included in the possible results — the range is always inclusive.
Click Generate
A random integer appears immediately. Click the result card to copy it to your clipboard with one tap.
100% Private
The number is generated by your own browser using JavaScript. Nothing is sent to any server.
Questions people ask
How does the random number generator work?
It uses JavaScript's Math.random() — a pseudo-random number generator (PRNG) seeded by the browser's entropy source. For each click it produces a uniformly distributed integer between your chosen Min and Max values, inclusive.
Is the generated number truly random?
Math.random() is pseudo-random, which is sufficient for games, decisions, and general use. If you need cryptographic randomness (e.g. for tokens or security keys), use a dedicated crypto library.
What range can I use?
Any integer range is supported — from negative numbers like -1,000,000 to positive numbers up to Number.MAX_SAFE_INTEGER (9,007,199,254,740,991). Min and Max can also be equal, which always returns that single value.
Does the tool send my data to a server?
No. Everything runs locally in your browser via JavaScript. No data is transmitted, stored, or logged anywhere.
Can I use this to pick lottery numbers?
Yes — set Min to 1 and Max to the highest ball number (e.g. 49), click Generate, and note the result. Repeat for each pick. Each draw is independent.
Why does 'between 1 and 10' include both 1 and 10?
The generator is inclusive on both ends, matching everyday expectations. The formula is: Math.floor(Math.random() * (max - min + 1)) + min.