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. Run the ipv6 subnet calculator to verify IPv6 subnet boundaries when configuring dual-stack routers or firewall policies.
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. Run the ipv6 address validator to identify the scope and type of an IPv6 address before using it in a routing or security policy.
Additional networking calculators for IP address planning and network analysis. Use the ipv6 reverse dns generator to generate reverse DNS records for IPv6 hosts when setting up PTR entries in a DNS server.
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