Parse and analyze any IPv4 address — binary, hex, class, subnet & more. 100% client-side, no data leaves your browser.
This IP Address Lookup tool parses and validates IPv4 addresses entirely in your browser using JavaScript. It computes the binary, hexadecimal, and decimal representations, determines the address class (A through E), shows the default subnet mask and CIDR notation, and flags whether the address is private, public, loopback, or otherwise reserved.
No IP address you enter is ever sent to a server — all parsing happens locally on your device, so this tool is safe to use for testing internal or sensitive network addresses.