🎲

Random Number Generator

Generate random integers or floats in any range, with optional uniqueness and sorting.

Minimum

Maximum

Count

Decimal Places

Unique numbers only Sort results Exclude zero

History (last 10)

No results yet

About Random Number Generator

Random Number Generator is a free, browser-based utility built for developers and engineers who need a fast, reliable way to generate random integers or floats in any range, with optional uniqueness and sorting. Whether you're debugging an API response, preparing data for deployment, or validating configuration files, this tool handles the job in seconds — with zero server calls. Everything runs locally in your browser, so your source code and data stay private.

How to Use

Enter or paste your input Type or paste your data into the input area. You can also use keyboard shortcuts (Ctrl+V) for quick pasting.

Configure options Adjust any settings or options above the input area to customize the output format and behavior.

Process your data Click the primary action button to process your input. The result appears instantly — no server round-trips.

Review the output Check the output area for your processed result. Any errors or warnings will be displayed clearly.

Copy or download Use the Copy button to copy the result to your clipboard, or download it as a file if that option is available.

🔒 Privacy note: All processing happens locally in your browser. Your data is never sent to any server.

Why Use Random Number Generator?

⚡

Instant Results, Zero Setup No need to install CLI tools, configure environments, or write scripts. Random Number Generator gives you the result instantly in your browser — paste, click, done.

🔒

Your Code Stays Private All processing runs locally using JavaScript. Your source code, API keys, tokens, and configuration data never leave your browser — not even temporarily.

🔄

Part of Your Dev Workflow Bookmark this tool alongside your IDE and terminal. When you need a quick format, encode, or validation, it's one tab away — faster than installing yet another npm package.

📱

Use It Anywhere Works on any device with a modern browser — laptop, tablet, or phone. Perfect for quick fixes when you're away from your development machine.

Frequently Asked Questions

This tool uses crypto.getRandomValues(), which is a cryptographically secure pseudo-random number generator (CSPRNG) provided by your browser. It's suitable for all non-trivial random number needs. Math.random() is NOT used.

When enabled, each generated number will appear only once in the results — like drawing numbers from a lottery without replacement. The count cannot exceed the range size (e.g., range 1–10 can only generate 10 unique numbers).