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Random Number Generator Online — Free Tool

Generate precise random integers or decimals within specified ranges, supporting unique constraints.

Random Number Generator
Generate random integers/decimals locally (optionally unique-only).
Privacy note: All processing happens entirely in your browser. No data is sent to our servers.

About this tool

Random Number Generator is a fast, browser-based productivity utility. Generate precise random integers or decimals within specified ranges, supporting unique constraints. To use it, paste or upload your input in the tool above, choose any options (like formatting style, separators, or output type), and copy or download the result. Because it runs in your browser, it’s ideal for quick edits, previews, and conversions without installing extra software. Common use cases include cleaning up data before sharing, converting formats for a spreadsheet or API, validating content before deployment, and generating outputs you can paste directly into your codebase. If you handle sensitive data, prefer tools that run locally in your browser—this helps reduce the risk of uploading private content to a server.

How to use

  1. Enter or upload your input in the tool panel above.
  2. Adjust any options if provided.
  3. Copy or download the output.

This page is available at /tools/random-number-generator.

Related keywords

random number generatorrngrandom integersrandom decimalsunique random numbers

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FAQ

What is Random Number Generator?

Random Number Generator is an online tool that helps you generate precise random integers or decimals within specified ranges, supporting unique constraints.

How do I use the Random Number Generator?

Add your input in the tool panel, adjust options if available, then copy or download the output.

Is this tool free?

Yes—this tool is free to use.

Does it run locally in the browser?

Most tools are designed to run in your browser. If a tool uploads files to a server, it should say so in the UI.