a tcp&udp package send/receive/transfer tool with gui for windows 32bit os. sokit can be use to send/recv/trans data package both in ascii /hex-binary format , it is a network tester or debugger. the user interface and shortcut keys are easily to use , and can write all data to log files. main features: server mode, listening on local port for tcp/udp data send/recv to a client. client mode, connect to a server port for tcp/udp data send/recv. transfer mode, listening on local prot and transfer all data to/from a client, and can insert user data to the up/down data stream. support ascii string and hex-binary data to send,and all data will be display in both format, no limit on data length. support log file on each mode. support multi-language user interface, and keyboard shortcuts. this a opensource freeware under GPLv3, free for use and distribute, welcome any bug report and suggest.