BreakPoint Software, Inc. - Home of the Hex Workshop Hex Editor and SIP Workbench
Home for the Hex Workshop Hex Editor and SIP workbench VoIP protocol analysis tool.
http://www.bpsoft.com/
Hexadecimal
The HT Editor
Computers, Software, Editors, Hexadecimal - The HT Editor. A professional executable file editing tool which currently supports the MZ, PE and LE file formats including code analyser.
https://hte.sourceforge.net/