Generators Browser-based

Random Number Generator

Generate secure random numbers within a custom range.

This tool runs in your browser. Your input is processed locally and is not uploaded.

How to use Random Number Generator

Use Random Number Generator when you need a quick generators utility without installing software or creating an account. Enter your values or text in the tool above, review the instant result, then copy or save the output when the tool supports it.

  • Works directly in a modern browser on desktop or mobile.
  • Designed for fast repeat use from the root URL /random-number-generator.
  • Input stays in your browser unless a tool clearly says otherwise.

Features

  • Custom minimum and maximum
  • Generate up to 1000 numbers
  • Uses browser crypto randomness
  • Copy results

Use Cases

  • Pick winners
  • Generate test numbers
  • Create random samples

UUID Generator

Generate secure random UUID v4 identifiers in your browser.

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Password Generator

Generate secure, random passwords with customizable options. Copy and use instantly.

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Percentage Calculator

Calculate percentages, percentage increase/decrease, and solve common percentage problems.

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Frequently Asked Questions

Is this tool free?

Yes. This RunX tool is free to use in your browser.

Does this tool upload my data?

No. The tool runs in your browser and does not send your input to a server.

Can I use it on mobile?

Yes. The interface is responsive and works on modern mobile browsers.