Random IP Generator — Free Online Random IP Address Generator
Generate random public IPv4, private IPv4, and IPv6 addresses for testing and development.
Frequently Asked Questions
Random IP Address Generation for Testing and Development
Random IP address generation is a common need in software testing — simulating distributed traffic, testing geographic IP filtering, seeding databases with realistic network data, and setting up test environments. This tool generates cryptographically random IPs across different classes.
Public IPv4 addresses avoid reserved ranges to ensure validity: no loopback (127.x.x.x), APIPA (169.254.x.x), private networks (RFC 1918), multicast (224+), or experimental ranges. Private addresses use the three RFC 1918 ranges: 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16.
IPv6 generation produces full 128-bit random addresses in standard colon-hexadecimal notation. For realistic IPv6 testing, consider using specific prefixes (like 2001:db8::/32 which is reserved for documentation and testing by RFC 3849) to avoid accidentally generating addresses that belong to real organizations.