Xpediter - Xpediter is a mainframe application interactive debugging tool. It also offers code coverage for mainframe application analysis.
Delve Debugger - Delve is a debugger for the Go programming language.
FusionDebug - FusionDebug an interactive step debugger for ColdFusion Markup Language.
Vorlon.JS - Vorlon.JS is an open source, extensible, platform-agnostic tool for remotely debugging and testing JavaScript.
netquery - netquery is the system introspection tool.
PVS-Studio - PVS-Studio is a useful piece of software for detecting problems in source code. The software examines program codes written in C, C++, and C# for any problems that might prohibit the code from functioning properly.