Transform any IPv6 address into a 32‑character hexadecimal string (128‑bit raw hex). This tool handles compressed IPv6, full IPv6, and IPv4‑mapped addresses like ::ffff:192.0.2.1. Perfect for network programming, packet analysis, and firewall rule generation.
🌐 IPv6 → Hexadecimal Converter
Enter an IPv6 address → get 32‑character hex code
🔢 HEXADECIMAL (32 chars / 128-bit)
—
Example conversions (tool in action)
What is IPv6 to Hexadecimal Conversion?
An IPv6 address consists of 128 bits, usually written as 8 groups of 4 hexadecimal digits like (2001:0db8:85a3::8a2e:0370:7334). Converting it to a continuous hexadecimal string removes colons and ensures each group is exactly 4 digits (leading zeros added). The result is a 32‑character hex string that represents the raw binary data.
🔧 Key use cases
- Low‑level packet crafting (Scapy, raw sockets)
- Firewall binary matching – some advanced firewalls match on hex patterns
- DNS over binary protocols – hex encoding for resource records
- Embedded systems with limited string parsers
- Network forensics searching raw packet dumps for IPv6 hex fingerprints
⚙️ How the converter works (step‑by‑step)
- Expand compression – replace
::with the appropriate number of zero groups. - Validate each hextet—ensure only hexadecimal digits (a‑f, 0‑9) and correct length (≤4).
- Pad with leading zeros – every hextet becomes exactly 4 hex digits.
- Concatenate – join all 8 hextets into one continuous 32‑character string.
For IPv4‑mapped IPv6 addresses (e.g., ::ffff:192.0.2.1), the tool ext
Example mapping table
| IPv6 Address (human readable) | 32‑character Hexadecimal (machine ready) |
|---|---|
| ::1 | 00000000000000000000000000000001 |
| fe80::1 | fe800000000000000000000000000001 |
| 2001:db8::1 | 20010db8000000000000000000000001 |
| ::ffff:192.0.2.1 | 00000000000000000000ffffc0000201 |
| 2001:0db8:85a3:0000:0000:8a2e:0370:7334 | 20010db885a3000000008a2e03707334 |