Generate Random Numbers

cross-browser testing tools

World's simplest random number generator for web developers and programmers. Just press Generate Random Numbers button, and you get a random number. Press button, get randomness. No ads, nonsense or garbage.
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Announcement: We just launched Online Fractal Tools – a collection of browser-based fractal generators. Check it out!
Range start: Range end: How many?

Want to generate random decimals?

Use the Random Decimal Generator tool!

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Pro tip: You can use ?input=text query argument to pass text to tools.