IPv6 Expand & Compress

Expand “::” shorthand to all 32 hex digits, or compress a long IPv6 address to its canonical form.

Runs in your browser — nothing is uploaded
Examples: 8.8.8.8 · 2001:db8::1 · 3232235777 · 0xC0A80101

How to use IPv6 Expand & Compress

  1. Enter an IPv4 address, an IPv6 address, or an integer / hex value.
  2. Read all formats, the address type and the reverse DNS name.
  3. Copy any value with one click.