IPv6 Address Expander / Compressor

IPv6 Address Expander / Compressor

Expand compressed IPv6 addresses to full 128-bit notation, or compress expanded addresses to their shortest valid form following RFC 5952 canonical rules. Validate, convert, and inspect IPv6 addresses — all client-side.

How to Use

Enter an IPv6 address in any format — compressed (2001:db8::1) or expanded. The tool instantly shows the expanded form, compressed form, binary representation, and decimal integer. Compression rules are explained so you can see exactly what changed. Use batch mode for multiple addresses.

Features

• Expand IPv6 – Convert compressed notation to full 8-group, 32-character format
• Compress IPv6 – Reduce to shortest valid form per RFC 5952 canonical rules
• Binary representation – View the full 128-bit binary form
• Decimal conversion – Convert to integer representation
• Compression rules – See exactly which rules were applied during compression
• Batch processing – Process multiple IPv6 addresses at once
• Validation – Instant syntax validation with clear error messages