A hexdump is a byte-by-byte view of binary data written as hexadecimal pairs, usually 16 bytes per line with an
offset column on the left. Tools like tcpdump -X, Wireshark, xxd, hexdump -C
and most debuggers produce one when you ask to see raw packet or memory contents.
Paste the raw hex into the box above and click Decode. Leading offset columns are detected and removed. The result shows the bytes re-aligned in an offset-labelled hex view next to their ASCII decode, with non-printable bytes shown as dots.
The first 14 bytes are marked as the Ethernet destination MAC, source MAC and EtherType fields, so packet captures can be read without reaching for a protocol reference.
Need to check reachability instead of decode bytes? Try ping4.network or ping6.network.