IP Address Validator checks whether a given string is a valid IPv4 or IPv6 address according to IETF specifications, and provides detailed information about the address including its type (private, public, loopback, link-local, multicast), CIDR notation, subnet membership, and reverse DNS format. It validates both full and compressed IPv6 notation, detects embedded IPv4 addresses in IPv6 (::ffff:192.168.1.1), and identifies reserved address ranges defined by IANA.
Network administrators validating configurations, security analysts checking IP classifications, and developers implementing IP address validation in applications. The tool runs entirely in your browser — your data never leaves your device.
Learn more about related topics: IPv4, IPv6, CIDR notation, RFC 1918.
IP Address Validator is a free, browser-based developer tool on AIDToolStack. Validate IPv4 and IPv6 addresses and show scope and class info. It requires no installation or sign-up and works entirely in your browser.
Yes, completely free. IP Address Validator has no usage limits, no account requirements, and no hidden fees. Use it as often as you need.
No, all processing happens locally in your browser. Your data never leaves your device and nothing is sent to any server.
Yes, it works in any modern browser on both desktop and mobile devices. No app download required — just open the page and start using it.
AIDToolStack tools run entirely in your browser with no server processing. This means faster results, complete privacy, and zero downtime. There are no ads blocking your workflow, and everything is free with no sign-up required.
Get weekly developer tool picks and tips
