Convert IPv6 address to literal address online

Online tool to convert IPv6 address to corresponding literal address.
Also IPv6 Calculator shows longest and shortest IPv6 versions, and Reverse DNS lookup address using the special domain


IPv6 literal
IPv6 URL:http://[::]
IPv6 UNC RFC2732:\\[::]\
IPv6 longest:0000:0000:0000:0000:0000:0000:0000:0000
IPv6 shortest:::

More reading

An IPv6 address is represented as eight groups of four hexadecimal digits, each group is separated by a colon (:).

To use IPv6 address in URL, UNC path, nix command line, configuration file, file name parsing, etc., often it must be converted to literal address. For example, in Apache HTTP Server: IPv6 addresses must be surrounded in square brackets. This also works in modern Windows and nix versions, however this does not work in legacy software, so appendix must be used. Use IPv6 address field below to convert your IPv6 to literal address.

From Wikipedia: Colon (:) characters in IPv6 addresses may conflict with the established syntax of resource identifiers, such as URIs and URLs. The colon has traditionally been used to terminate the host path before a port number.

Here are some supported IPv6 address examples (notation that is used to specify the zone ID with an address (Address%ZoneID) is also supported):

Eight groups:2001:0db8:85a3:0000:0000:8a2e:0370:7334
Eight groups with leading zeroes omitted:2001:db8:85a3:0:0:8a2e:370:7334
Short form:2001::7334
IPv6 loopback address to the local host:::1
IPv6 unspecified address:::
IPv6 with a zone index:fe80::3%eth0
IPv4 mapped to IPv6:::ffff:
IPv4 mapped to IPv6 with a zone index:::ffff:

To use address 2001:0db8:85a3:0000:0000:8a2e:0370:7334 in Windows, use -

Note that * is automatically resolved by Windows without any queries to DNS name servers.

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