Just in case that this isn't known yet, some links to my tools:

RaftAway (raft removal, extrusion/speed/retraction patching)

g2z (G-Code to Z-Code conversion)

ZTool (all the features of RaftAway and g2z plus preview, support removal, fan profile display/export/import, patching of temperatures/offset etc.)

Profiles for G-Code conversion (basic, mainly meant as starting point)

All the tools are in Java, should run on any platform that support the Java Runtime (Windows, MacOS, Linux).
There's always a short manual in rich text format (RTF) included as well as Icons for Windows (*.ico) and MacOS (*.icns).

Have fun.