Skip to main content

IPv6 Expander/Compressor

v1.2.1

Expand and compress IPv6 addresses and normalize canonical forms.

Expands compressed IPv6 addresses to their full 128-bit form and compresses fully-written addresses to the canonical shortest notation following RFC 5952 rules.

How to use
  • →Paste an IPv6 address in any notation (compressed, full, or mixed).
  • →The tool outputs both the full expanded form and the RFC-compliant compressed form.
  • →Useful for normalising addresses before storing in databases or comparing configurations.
Display:

Enter an IPv6 address and click Analyse to inspect it.