CapAnalysis is a Web pcap file Viewer. It can manage not only one file, but sets of pcap files.
The TCP reassembly allows to evaluate the bytes lost for each TCP stream.
Data/flows can be filtered by:
CapAnalysis is for everyone. It can be used and improved by students, researchers, hackers, engineers, developers.
It is freely available as open source, and is released under the GNU General Public License version 2.