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MonoCalc

Random IPv4 Generator

Generate IPv4 Addresses

IP address Generation Settings
Choose how many random IP addresss to generate
When checked, private IP ranges (10.0.0.0/8, 192.168.0.0/16, 172.16.0.0/12) and reserved ranges will be excluded
Select CIDR notation to include with IP addresses (e.g., 192.168.1.1/24)

Generated IP Addresses

Click "Generate IPs" to create a list of random IPv4 addresses based on your criteria.

About the tool

🌐 Random IPv4 Generator – Create Lists of Random IP Addresses

Need random IP addresses for network testing, development, or educational purposes? The Random IPv4 Generator helps you create lists of random IP addresses with powerful customization options.

This guide explains what a random IP generator is, its uses, and walks you through using our free online Random IPv4 Generator to create customized IP address lists.

📘 What is a Random IPv4 Generator?

A random IPv4 generator is a tool that creates random IP addresses in the IPv4 format (e.g., 192.168.1.1). Each IPv4 address consists of four octets (numbers between 0-255) separated by periods.

Our generator allows you to customize the output by excluding private/reserved IP ranges and adding CIDR notation. It also color-codes the results to distinguish between public, private, and reserved IP addresses.

⚙️ How the Random IPv4 Generator Works

Our Random IPv4 Generator creates IP addresses by generating random values (0-255) for each of the four octets in an IPv4 address. When you click "Generate", the tool:

  1. Generates random values for each octet (0-255)
  2. Checks if the IP falls within private or reserved ranges (if filtering is enabled)
  3. Adds CIDR notation if that option is selected
  4. Color-codes the results based on IP type (public, private, reserved)
  5. Displays the results in a clean, easy-to-read format

🧩 Key Features

  • 🔄 Generate 1 to 100 random IP addresses at once
  • 🔒 Option to exclude private and reserved IP ranges
  • 📝 Support for CIDR notation (e.g., 192.168.1.1/24)
  • 🎨 Color-coding to distinguish between public, private, and reserved IPs
  • 📋 One-click copy to clipboard functionality (for individual IPs or the entire list)
  • 📥 Export to TXT or CSV file formats
  • 🔐 Client-side only — no data is ever uploaded

💡 Customization Options

Personalize your IP address list with these customization options:

1. Generation Settings

  • Number of IPs: Choose how many IP addresses to generate (1-100)
  • Exclude Private/Reserved Ranges: Filter out private IP ranges (10.0.0.0/8, 192.168.0.0/16, 172.16.0.0/12) and reserved ranges

2. CIDR Notation

  • Use CIDR Notation: Add a subnet mask in CIDR format (e.g., /24) to each IP address
  • CIDR Value: Specify the prefix length (1-32) for the CIDR notation

🌟 Practical Applications

  • 🖥️ Network Testing: Generate test IP addresses for network configurations
  • 🔍 Security Testing: Create IP lists for firewall rule testing
  • 📊 Data Simulation: Generate realistic IP data for development and testing
  • 🎓 Educational Purposes: Learn about IP addressing and subnetting
  • 📝 Documentation: Create example IP addresses for technical documentation

🔄 How to Use the Random IPv4 Generator

  1. Set the number of IP addresses you want to generate
  2. Choose whether to exclude private and reserved IP ranges
  3. Decide if you want to use CIDR notation and set the prefix length
  4. Click "Generate IPs" to create your random IP address list
  5. Click on any IP address to copy it to your clipboard
  6. Use "Copy All" to copy the entire list to your clipboard
  7. Use "Export" to download the list as a TXT or CSV file
  8. Click "Clear" to reset the output and start over

📚 Understanding IP Address Types

The generator color-codes IP addresses based on their type:

  • 🟢 Public IPs: Routable on the public internet
  • 🔵 Private IPs: Reserved for use in private networks (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16)
  • 🟠 Reserved IPs: Special-purpose addresses (0.0.0.0/8, 127.0.0.0/8, 169.254.0.0/16, etc.)

✅ Tips for Getting the Most Out of the Random IPv4 Generator

  • Use the exclude option when you need only public IP addresses
  • Add CIDR notation when working with subnetting or network configurations
  • Export to CSV when you need to include IP type information in your export
  • Generate a large list and then manually select the most useful IPs
  • Use the color coding to quickly identify different types of IP addresses

Frequently Asked Questions

  • Is the Random IPv4 Generator free ?

    Yes, Random IPv4 Generator is totally free :)

  • Can i use the Random IPv4 Generator offline ?

    Yes, you can install the webapp as PWA.

  • Is it safe to use Random IPv4 Generator ?

    Yes, any data related to Random IPv4 Generator only stored in your browser(if storage required). You can simply clear browser cache to clear all the stored data. We do not store any data on server.

  • What is a Random IPv4 Generator?

    A Random IPv4 Generator is a tool that creates random IP addresses in the IPv4 format (e.g., 192.168.1.1). It's useful for testing network configurations, simulating network traffic, or generating sample data for development and testing purposes.

  • How does the Random IPv4 Generator work?

    The tool generates random values for each of the four octets (0-255) in an IPv4 address. You can customize the generation by excluding private/reserved IP ranges and specifying the number of IP addresses to generate.

  • What are private IP addresses?

    Private IP addresses are reserved for use within private networks and are not routable on the public internet. Common private IP ranges include 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16.

  • What is CIDR notation?

    CIDR (Classless Inter-Domain Routing) notation is a compact method for specifying IP addresses and their associated routing prefix. It's written as the IP address followed by a slash and a number (e.g., 192.168.1.0/24), where the number represents the count of leading 1 bits in the routing mask.

  • Can I export the generated IP addresses?

    Yes, you can export the generated IP addresses to a .txt or .csv file for use in other applications. You can also copy individual IP addresses or the entire list to your clipboard.