IP Address Generator

Generate random IPv4 and IPv6 addresses

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Free IP Address Generator - Generate Random IPv4 & IPv6 Addresses Online

Why Use Our IP Address Generator?

Our free IP address generator creates random IPv4 and IPv6 addresses for network testing, development, and simulations. Support for full IPv6 and short IPv6 formats. Generate up to 50 IP addresses at once 🌐

Perfect for network administrators, developers, security testers, and IT professionals who need random IP addresses for testing network applications, firewalls, or development environments.

Key Features

  • IPv4 & IPv6 - Both protocols supported
  • Short IPv6 - Compressed notation
  • Bulk Generation - Up to 50 addresses
  • Valid Format - Properly formatted
  • Copy All - Export instantly
  • No Registration - Completely free

Understanding IP Addresses

IPv4 (Internet Protocol version 4)

32-bit address written as four decimal numbers (0-255) separated by dots. Still the most common protocol on the Internet.

Example: 192.168.1.1, 10.0.0.5, 172.16.254.1

IPv6 (Internet Protocol version 6)

128-bit address written as eight groups of four hexadecimal digits separated by colons. Successor to IPv4 with vastly more addresses.

Example: 2001:0db8:85a3:0000:0000:8a2e:0370:7334

How to Generate IP Addresses

  1. Select Type - Choose IPv4, IPv6 (full format), or IPv6 (short format).
  2. Set Count - Specify how many IP addresses to generate (1-50).
  3. Generate - Click "Generate IP Addresses" to create random IPs.
  4. View Results - Each address is displayed in large, readable format.
  5. Copy All - Export all addresses for use in your testing or configuration.

Common Use Cases

Security Testing

Test firewall rules, intrusion detection systems, IP blocking lists, and network access controls.

Software Development

Generate test data for network applications, logging systems, IP validation, and geolocation features.

Network Configuration

Test routing tables, DHCP configurations, subnet calculations, and network planning scenarios.

Database Testing

Populate databases with IP address data for user logs, access records, or connection tracking.

Log File Generation

Create realistic log files for testing log analysis tools, SIEM systems, or monitoring dashboards.

Education

Teach networking concepts, IP addressing, subnetting, and protocol differences between IPv4 and IPv6.

IPv4 Address Classes

Class Range Default Subnet Mask Purpose
A 1.0.0.0 - 126.255.255.255 255.0.0.0 (/8) Large networks
B 128.0.0.0 - 191.255.255.255 255.255.0.0 (/16) Medium networks
C 192.0.0.0 - 223.255.255.255 255.255.255.0 (/24) Small networks
D 224.0.0.0 - 239.255.255.255 N/A Multicast
E 240.0.0.0 - 255.255.255.255 N/A Reserved/Experimental

Private IP Address Ranges (RFC 1918)

These IPv4 ranges are reserved for private networks and not routable on the public Internet:

  • 10.0.0.0 - 10.255.255.255 (10.0.0.0/8) - Class A private range
  • 172.16.0.0 - 172.31.255.255 (172.16.0.0/12) - Class B private range
  • 192.168.0.0 - 192.168.255.255 (192.168.0.0/16) - Class C private range
  • 127.0.0.0 - 127.255.255.255 (127.0.0.0/8) - Loopback addresses

IPv6 Notation

Full Format

All eight groups of four hexadecimal digits displayed with leading zeros.

2001:0db8:85a3:0000:0000:8a2e:0370:7334

Compressed Format

Leading zeros omitted, consecutive zero groups replaced with :: (can only use :: once).

2001:db8:85a3::8a2e:370:7334

IPv4 vs IPv6 Comparison

Feature IPv4 IPv6
Address Size 32 bits (4 bytes) 128 bits (16 bytes)
Total Addresses ~4.3 billion ~340 undecillion
Notation Decimal (dotted) Hexadecimal (colon)
Header Size 20-60 bytes 40 bytes (fixed)
Fragmentation Routers and hosts Sending hosts only

Special IPv4 Addresses

  • 0.0.0.0 - Default route or "this network"
  • 127.0.0.1 - Loopback address (localhost)
  • 169.254.x.x - Link-local (APIPA - automatic private IP addressing)
  • 255.255.255.255 - Limited broadcast address
  • 224.0.0.0/4 - Multicast addresses

Important Notes

For Testing Only: These are randomly generated IP addresses for testing and development purposes. Generated addresses may belong to real networks or be in use. Always use private IP ranges (10.x.x.x, 172.16-31.x.x, 192.168.x.x) for internal testing and never attempt to connect to randomly generated public IPs without permission.
Pro Tip: When testing firewalls, generate IPs from different address classes to test rule matching. For IPv6 testing, use both full and compressed formats to ensure your application handles both correctly. Generate addresses in private ranges (10.x, 172.16.x, 192.168.x) for internal network testing to avoid conflicts. For log analysis testing, mix IPv4 and IPv6 addresses to simulate dual-stack environments. When testing geolocation features, remember that randomly generated IPs won't have real geographic data. For subnet calculations, generate IPs within specific ranges to test network boundary conditions. Test with special addresses like 0.0.0.0, 127.0.0.1, and 255.255.255.255 to ensure proper handling of edge cases!
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