IPv6 Address Compressor
Paste any full IPv6 address to instantly compress it to the shortest valid representation using zero suppression and consecutive group elimination. View the shortened IPv6 notation alongside the original expanded form — perfect for simplifying addresses in DNS records, firewall rules, and network configurations. The ipv6 address type identifier analyses the prefix bits of any IPv6 address and returns the address type according to RFC 4291.
Input IPv6 Address
Example addresses to try:
2001:0db8:0000:0000:0000:0000:0000:0001
fe80:0000:0000:0000:0000:0000:0000:0001
0000:0000:0000:0000:0000:0000:0000:0001
Compressed Result
Enter an IPv6 address to compress
How IPv6 Compression Works
Rule 1: Remove Leading Zeros
Each group of 4 hex digits can have leading zeros removed:
Before: 2001:0db8:0001:0042
After: 2001:db8:1:42
Rule 2: Use :: for Consecutive Zeros
One sequence of consecutive all-zero groups can be replaced with ::
Before: 2001:db8:0:0:0:0:0:1
After: 2001:db8::1
Related Network Tools
Explore these related tools for subnet calculation and IP address management. The ipv6 subnetting tool outputs both compressed and full expanded forms alongside the network range for any IPv6 block.
Additional networking calculators for IP address planning and network analysis. The ipv6 reverse dns generator reverses and expands any IPv6 address into the nibble-format PTR record used in ip6.arpa zones.
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