# GCode Compare — Side-by-side G-code diff tool

> Side-by-side G-code diff tool (iPhone/iPad app by Elliot Williams.)

- Source: https://appshunter.io/ios/app/gcode-compare/id6780356159 (this page in markdown: same URL + `.md`)
- Developer: [Elliot Williams](https://appshunter.io/developer/991432050)
- Category: Utilities, Developer Tools
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English
- Released: 2026-06-23
- Data updated: 2026-06-28
- User reviews in markdown: https://appshunter.io/ios/app/gcode-compare/id6780356159/reviews.md

## What is GCode Compare?

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.


## Version history (last 1 release)

### 1.0 — 2026-06-25

No release notes.

## More apps by Elliot Williams

- [Jessie Reed](https://appshunter.io/ios/app/jessie-reed/id1059010153)
- [Egg Game](https://appshunter.io/ios/app/egg-game/id1435034980)
- [Autumn The Cat](https://appshunter.io/ios/app/autumn-the-cat/id1449928888)
- [Egg Game 2](https://appshunter.io/ios/app/egg-game-2/id1450696793)
- [Egg Game 3](https://appshunter.io/ios/app/egg-game-3/id1450696887)
- [WDC Art](https://appshunter.io/ios/app/wdc-art/id1451431909)

All apps by Elliot Williams: https://appshunter.io/developer/991432050

## Related topics

[gcode compare](https://appshunter.io/ios/topics/gcode-compare)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-28.*