GCode Compare

Compare two G-code files side by side, spot changed toolpaths, ignore comments or line numbers, and export a clean difference report.

GCode Compare is a focused macOS tool for comparing two G-code files side by side. Load .gcode, .nc, .tap, .cnc, or text files and quickly see unchanged, changed, inserted, and deleted lines.

Built for CNC, 3D printing, and CAM workflows, the app includes useful G-code-aware comparison options. You can ignore whitespace, comments, N line numbers, and letter case to focus on meaningful toolpath differences instead of formatting noise.

The comparison view includes line numbers, color-coded difference states, quick filtering, summary counts, and a plain-text report you can copy or export.

Features:

• Side-by-side G-code comparison
• Support for common G-code and text file extensions
• Ignore whitespace, comments, line numbers, and case
• Filter by changed, inserted, deleted, or unchanged rows
• Difference summary counts
• Copy or export a comparison report

GCode Compare keeps the workflow simple: choose two files, review the differences, and save the report when you need to share or archive the result.