1)   EditCNC 3.0.2.9
EditCNC, a lightning fast text editor designed for CNC programmers has the features you would expect from any quality text editor. In addition, EditCNC includes many powerful features designed purely for CNC programming and editing.
CNC, dnc, g code, gcode, cnc programming,

 2)   dncSoftware 4.1.0.0
dncSoftware is an easy to use combined DNC software program for CNC file transfer with a combined text editor for easy CNC editing. You can setup to 32 CNC machines for DNC transfer.
DNC software, CNC, G code, CNC programming, RS232 File Transfer,

 3)   dnc4U 3.0.0.9
dnc4U is an easy to use combined DNC program for CNC file transfer with a combined text editor for easy CNC editing. You can setup to 32 CNC machines for DNC transfer.
DNC software, CNC, G code, CNC programming, RS232 File Transfer,

 4)   CNC Syntax Editor 2.1.0.38
CNC Syntax Editor is a popular tool for writing, editing, and studying CNC programs with G codes. It has a comfortable and intuitive interface both for beginners and advanced programmers. CNC Syntax Editor is deceptively simple, but truly powerful.
cnc editor, cnc edit, g code, g code edit, nc edit, axis,

 5)   FileFindString 1.01
FileFindString is a program that searches through numerous ASCII (any text based) files for text strings that you specify. FileFindString then produces a report on the results. FileFindString can be used to analyze/search numerous Numeric Code files.
FileFindString, file, find, string, nc, numeric, code, milling, turning, punch,