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IPv6 Expand / Compress
Expand an IPv6 address to its full 8-group form or compress it to the RFC 5952 canonical form, with integer, hex, and binary views.
This tool handles input and primary processing in your browser and is designed not to send the input to QuickKit’s server.
Representations
| Compressed (RFC 5952) | — |
|---|---|
| Compressed (mixed IPv4) | — |
| Expanded | — |
| Groups, no leading zeros | — |
| 128-bit integer | — |
| Hexadecimal | — |
| Binary (per group) | — |
How it works
Compression follows RFC 5952: lowercase hex, no leading zeros, and the longest run of all-zero groups (leftmost on a tie) replaced by "::". The mixed form writes IPv4-mapped addresses as ::ffff:a.b.c.d. Zone IDs (%eth0) are accepted and dropped from the address value.