Best G-Code Viewer & Converter Apps

0+ iOS apps curated and reviewed

4.4 avg rating
19 free apps
Updated June 2026

Finding the right g-code viewer & converter app can be overwhelming with so many options. We've analyzed 0+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for G-Code Viewer & Converter

Sequence :: G-Code editor, CNC#1

Sequence :: G-Code editor, CNC by Hypercube GFX, Inc.

Machining, CAD Modeling, CAM
Editor's Choice
🎨 Graphics & Design
4.3(59 ratings)
FreeIn-App Purchases
Sequence :: G-Code editor, CNC screenshot 1
Sequence :: G-Code editor, CNC screenshot 2
Sequence :: G-Code editor, CNC screenshot 3
Sequence :: G-Code editor, CNC screenshot 4
Sequence :: G-Code editor, CNC screenshot 5

This app is a text editor for G-Code and M-Code, designed for machining on CNC and lathe machines. It allows users to import, save, and visualize STL models with a built-in 3D renderer. Subscriptions are available and can be canceled anytime.

G-Code Viewer & Converter#2

G-Code Viewer & Converter by Victor Bovio

for GCODE, CNC, NGC, NC files
Strong Contender
📊 Productivity
3.0(2 ratings)
$1.99
#72in Productivity
G-Code Viewer & Converter screenshot 1
G-Code Viewer & Converter screenshot 2
G-Code Viewer & Converter screenshot 3
G-Code Viewer & Converter screenshot 4
G-Code Viewer & Converter screenshot 5

Easily view and convert CNC machine code files on your mobile device. Supports various export formats like PDF, SVG, DXF, and IGES. Load files directly from compressed archives for convenient access.

More G-Code Viewer & Converter apps to explore

4
Documents: File Manager & Docs
Documents: File Manager & Docs
Documents: File Manager & Docs
Converter. Downloader. Reader.
Free

This app is a comprehensive file manager and document editor for mobile devices. It allows users to organize, edit, convert, and annotate various file types, including PDFs, Office documents, and audio/video files. It also features transcription, scanning, and cloud integration.

Edit PDFs directlyConvert files to PDFOrganize files and folders
📊 Productivity
(617K)
free with in-app purchases
5
DWG FastView-CAD Viewer&Editor
DWG FastView-CAD Viewer&Editor
DWG FastView-CAD Viewer&Editor
* Support 2D/3D CAD formats
Free

This cross-platform CAD application allows users to view, edit, and create 2D and 3D designs on the go. It supports a wide range of file formats and offers advanced tools for precise drawing, measurement, and annotation, even offline.

View and edit 2D/3D CAD drawingsSupports over 40 3D drawing formatsAccurate measurement and annotation tools
📊 Productivity
(50)
free with in-app purchases
6
The Vector Converter
The Vector Converter
The Vector Converter
Convert to SVG, EPS and PDF
Free

Easily convert files to various vector and image formats like SVG, EPS, and PDF. Select your input, choose an output, and convert in seconds. Save, share, or open converted files directly from the app.

Convert to SVG, EPS, PDF, PNG, JPG, and moreSupports dozens of input formatsFast conversion (under 15 seconds)
🔧 Utilities
(4.7K)
freemium
7
GCode Scanner & STL Viewer
GCode Scanner & STL Viewer
GCode Scanner & STL Viewer
Interpret CNC machine code
Free

This tool allows users to view and simulate CNC machine code (G-code) and 3D model files (STL) before production. It helps prevent errors, save tools, and reduce setup times for machinists, programmers, and engineers.

G-code viewer with real-time toolpath playbackError detection for gouges and over-travelsSTL model viewer
🔧 Utilities
(2)
free with in-app purchases
8
3D File Viewer: OBJ STP & more
3D File Viewer: OBJ STP & more
3D File Viewer: OBJ STP & more
STP STL OBJ FBX GLTF & More
Free

Easily open and explore 3D model files on your iPhone or iPad. Supports over 20 popular formats, offering smooth viewing with intuitive touch controls. Ideal for designers, engineers, architects, and students working with 3D data.

Supports over 20 3D file formatsFast and smooth 3D file viewingZoom, rotate, and pan with touch controls
🔧 Utilities
(35)
free with in-app purchases
9
Acrobat Reader: PDF Editor
Acrobat Reader: PDF Editor
Acrobat Reader: PDF Editor
Documents Editor & Converter
Free

This app is a powerful PDF tool for viewing, editing, annotating, and signing documents. It offers AI-powered features for summarizing and interacting with PDFs, along with robust conversion and security options. Collaborate on files and access your documents from anywhere.

View, edit, and annotate PDFsSign and fill PDF formsConvert files to and from PDF
💼 Business
(628K)
freemium
10
Koder Code Editor
Koder Code Editor
Koder Code Editor
(S)FTP, Dropbox, Webdav, SSH
Free

A powerful code editor for mobile devices, offering syntax highlighting for over 80 languages, remote file access, and a built-in terminal. Perfect for developers who need to code on the go with a well-designed interface.

Syntax highlighting for 80+ languagesRemote file access (SFTP, Dropbox, WebDAV)Built-in SSH client
🛠️ Developer Tools
(9.3K)
paid
11
The Document Converter
The Document Converter
The Document Converter
Convert to PDF, DOCX, JPG, etc
Free

Effortlessly transform files into various document and image formats like PDF, DOCX, and JPG. Simply select your input, choose the desired output, and convert in seconds. Save, share, or open your converted files directly in other applications.

Convert to PDF, DOCX, JPG, TXT, and moreSupports dozens of input formatsSave, share, or open converted files
🔧 Utilities
(5.9K)
freemium
12
Google Docs
Google Docs
Google Docs
Edit Documents and Collaborate
Free

Create, edit, and collaborate on documents online in real time. Work together seamlessly with your team, even offline, and access a variety of file types. AI-powered features can help draft and refine content.

Real-time collaborationOffline editingTemplate library
📊 Productivity
(3.1M)
freemium
13
PDF Expert: Editor & Converter
PDF Expert: Editor & Converter
PDF Expert: Editor & Converter
Edit, Sign, Convert Documents
Free

This app allows you to edit, annotate, fill out forms, and convert PDF documents. It offers AI-powered summarization and analysis, along with tools to merge, sign, and protect your files. Work seamlessly across Apple devices with a user-friendly interface.

Edit PDF text and imagesAnnotate and highlight PDFsFill out PDF forms
📊 Productivity
(215K)
free with in-app purchases
14
Photo & Image Converter
Photo & Image Converter
Photo & Image Converter
Resizer & convert files bulk
Free

Easily convert and resize images and files on your iOS device. Supports a vast array of formats for both online and offline conversions, with batch processing capabilities. All converted files are conveniently saved in Apple's Files app.

Image conversionFile conversionImage resizing
📊 Productivity
(491)
free with in-app purchases
15
WPS Office-AI Doc, PDF, Sheet
WPS Office-AI Doc, PDF, Sheet
WPS Office-AI Doc, PDF, Sheet
Office Suite with PDF Editor
Free

This AI-powered office suite transforms your device into a smart workspace. Generate presentations from prompts, digitize notes, and analyze documents with an intelligent assistant. Seamlessly sync across devices for efficient workflow.

AI-powered document analysis and summarizationInstant presentation creation from promptsOCR for digitizing notes and business cards
📊 Productivity
(18K)
subscription
16
iEditor – Text Code Editor
iEditor – Text Code Editor
iEditor – Text Code Editor
Best source code editor
Free

A fast and simple text and source code editor for iPhone and iPad. It allows users to create, import, edit, and manage various file types with features like syntax highlighting, search/replace, and export options.

Create and import text/source code filesSyntax highlighting for C, Java, HTMLSearch and replace functionality
📊 Productivity
(179)
ad-supported
17
XML Viewer Converter JSON PDF
XML Viewer Converter JSON PDF
XML Viewer Converter JSON PDF
XML To PDF AI - XML Converter
Free

This app allows you to view, edit, convert, and validate XML files. It offers AI-powered XML code generation and converts files to PDF and JSON. Enjoy a user-friendly interface and flexible subscription options.

View, edit, and save XML filesConvert XML to PDF and JSONAI-powered XML code generation
🔧 Utilities
(110)
subscription
18
GIF Maker - Memes & GIFs
GIF Maker - Memes & GIFs
GIF Maker - Memes & GIFs
Gif Creator & Live Gif Editor
Free

Create and edit animated GIFs, Boomerangs, and memes with AI assistance. Convert videos and photos to GIFs, swap faces, add text, and apply filters. Share your creations across social media platforms.

AI GIF generation from textVideo and photo to GIF conversionFace swapping with AI
🔧 Utilities
(88K)
free with in-app purchases
19
STL File Viewer Pro
STL File Viewer Pro
STL File Viewer Pro
Simplest Way To View STL Files
Free

Easily view, rotate, and inspect 3D STL files on your iPhone or iPad. Load models instantly from various sources for 3D printing, design review, or engineering inspection.

Instant STL file loadingFull 360° rotation and zoomSharp detail rendering
🛠️ Developer Tools
(50)
free with in-app purchases
20
STEP File Viewer
STEP File Viewer
STEP File Viewer
View & Explore STEP/IGES
Free
🛠️ Developer Tools
(3)