Random IP Address Generator - IPv4 & IPv6

A random IP generator creates fake but properly formatted IP addresses for testing, documentation, or placeholder data. Choose IPv4 (four octets) or IPv6 (eight groups of hex). The addresses aren't routable; they're for development and examples only.

1. Choose version: Select IPv4 or IPv6.
2. Set quantity: Pick how many addresses you need.
3. Generate: Copy the addresses for config files, test data, or docs.

• Test data: Generate IP addresses for mock user sessions or log files.
• Documentation: Use non-routable IPs in examples without exposing real servers.
• Network simulations: Create sample data for firewall rules or analytics dashboards.

Use case 1: API mocking

Populate mock API responses with random client IPs for realistic test payloads.

Use case 2: Security documentation

Show example firewall rules using placeholder IPs that won't accidentally block real traffic.

Use case 3: Load testing

Generate thousands of fake source IPs for stress-testing rate limiters.

Basic example

Version: IPv4
Quantity: 1
Output: 192.168.45.123

Advanced example

Version: IPv6
Quantity: 3
Output:

2001:0db8:85a3:0000:0000:8a2e:0370:7334
fd12:3456:789a:1::1
fe80:0000:0000:0000:0202:b3ff:fe1e:8329

Using generated IPs in production

These addresses may coincidentally match real IPs. Use reserved ranges (like 192.0.2.x for docs) when possible.

Format validation

IPv4 octets should be 0–255; IPv6 groups should be valid hex. The tool generates valid formats by default.

• For guaranteed non-routable IPv4, restrict to private ranges (10.x.x.x, 172.16–31.x.x, 192.168.x.x).
• Use IPv6 documentation prefix (2001:db8::) when examples might be copied publicly.
• Combine with the random number generator for port numbers.

• Generate random numbers with the random number generator.
• Create UUIDs for session IDs using the UUID generator.
• Build secure test passwords with the password generator.

IP generation runs locally in your browser. No addresses are logged or uploaded.