Intercepter-NG is a multifunctional network toolkit for various types of IT specialists.Discontinued
App unavailable on Play Store and website is flagged by modern browsers as potentially malicious.Warning
Website blocked by modern browsers as possible trojan.
PCAPdroid is an android app to capture the phone traffic and analyze it remotely (e.g. via Wireshark). The traffic can be easily downloaded from a remote device thanks to the integrated HTTP server, or streamed to a remote UDP receiver.
The Network Diagnostic Tool (NDT) is a client/server program that provides network configuration and performance testing to a users desktop or laptop computer. The system is composed of a client program (command line or java applet) and a pair of server programs (a webserver...
Packet capture/Network traffic sniffer app with SSL decryption. Not that feature rich yet, but it's a powerful debugging tool especially when developing an app.