Convert IPv4 addresses between every format, see what class an address really is, and map CIDR ranges — in one place.
Type an IPv4 address in any format — dotted decimal (192.168.1.1), a plain decimal number (3232235777), hex (0xC0A80101) or 32-bit binary — and see it in every format at once.
Not all IPv4 addresses can appear on the public internet. The converter reports the class of every address you enter:
Enter any IP inside a network plus a prefix length to get the whole block: network address, broadcast, usable range and host count.
Conversions and lookups you saved with the button above, plus anything you add by hand. Records live under your local account (or guest space) on this device — create, view, edit and delete them any time.