WireEdit is a free desktop WYSIWYG editor for network packets. It allows editing any stack layer as "rich text" without having any knowledge of packets syntax and encoding rules. The input and output file format is Pcap. Start WireEdit and open a Pcap file with File>>Open command. You can use one of our examples Pcap files, or your own file. As in a packet analyzer, packets are fully decoded with each element of the decode tree linked back to the encoded data.