Best Stl Editor Apps

232+ iOS apps curated and reviewed

4.3 avg rating
20 free apps
Updated July 2026

Looking for free stl editor apps? 20 of our 232+ tracked titles are free to download β€” no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Stl Editor

3D modeling: Design my model#1

3D modeling: Design my model by Core five, Inc.

Sculpt & sketch digital art
Editor's Choice
🎨 Graphics & Design
4.6😊(13K ratings)
FreeIn-App Purchases
#91in Graphics & Design
3D modeling: Design my model screenshot 1
3D modeling: Design my model screenshot 2
3D modeling: Design my model screenshot 3
3D modeling: Design my model screenshot 4
3D modeling: Design my model screenshot 5
3D modeling: Design my model screenshot 6

Create 3D models and digital art on your mobile device. Sculpt, sketch, and color your designs with intuitive gesture controls and a comprehensive set of modeling tools. Export your creations in standard formats.

What We Love

  • πŸ‘ Easy to use
  • πŸš€ Smooth performance
  • πŸ’‘ Helpful tutorials
  • 🎨 Good modeling tools

Room to Improve

  • πŸ”’ Exporting locked behind paywall
  • πŸ”’ Subscription model
  • πŸ› Crashes and freezes
3D GO | 3D Printing Models#2

3D GO | 3D Printing Models by SimpleDev LLC

Thingiverse Printables Cults3d
Strong Contender
πŸ”§ Utilities
4.7😐(3.8K ratings)
FreeIn-App Purchases
3D GO | 3D Printing Models screenshot 1
3D GO | 3D Printing Models screenshot 2
3D GO | 3D Printing Models screenshot 3
3D GO | 3D Printing Models screenshot 4
3D GO | 3D Printing Models screenshot 5
3D GO | 3D Printing Models screenshot 6

This app consolidates 3D model searching, viewing, and slicing from major platforms into a single interface. It allows users to find, preview, organize, and prepare STL files for 3D printing, streamlining the entire workflow.

What We Love

  • πŸ‘ Convenient and free app
  • πŸš€ Great database of free files
  • πŸš€ Easy to send prints directly to printer
  • πŸ‘ Helpful developer response

Room to Improve

  • πŸ’° Subscription required for full access
  • πŸ› Buggy app with crashes and freezes
  • 🚫 Inaccessible for smaller screens
STL Master#3

STL Master by JA Logic Labs LLC

STL File Viewer + AR & Sharing
Worth Considering
πŸ”§ Utilities
4.2😐(49 ratings)
Free
STL Master screenshot 1
STL Master screenshot 2
STL Master screenshot 3
STL Master screenshot 4

View and interact with 3D models in augmented reality. Share instant screenshots and screen recordings of your designs directly from the app.

What We Love

  • πŸš€ Fast and smooth rendering performance
  • πŸ’° Completely free with no ads or trackers
  • 🎨 High-quality rendering and visualization
  • πŸ“± Works well on mobile devices (iPhone, iPad)

Room to Improve

  • πŸ› Frequent crashes and freezing
  • πŸ–±οΈ Difficult object manipulation and navigation
  • πŸ” Zoom limitations (hard to zoom out/in)

More Stl Editor apps to explore

4
Autodesk Fusion
Autodesk Fusion
Autodesk Fusion
by Autodesk
Free

Collaborate on 3D designs from anywhere with this mobile app. View, comment on, and share CAD models in over 100 formats. It works with a companion cloud-based desktop product for product design and development.

View over 100 file formatsCollaborate on 3D designsComment on project activities
πŸ“Š Productivity
(4.1K)
free
5
3D Modeling, Design:Β Shapeyard
3D Modeling, Design:Β Shapeyard
3D Modeling, Design:Β Shapeyard
Sketch, sculpt, 3d print, art
Free

This app offers intuitive 3D modeling tools for creating detailed models on mobile devices. It's suitable for beginners, kids, and professionals, with features for game development and 3D printing. Export your designs for use in popular game engines or to bring them to life with a 3D printer.

Intuitive 3D modeling toolsSculpting capabilities3D model export (OBJ, STL)
🎨 Graphics & Design
(6K)
subscription
6
Onshape 3D CAD
Onshape 3D CAD
Onshape 3D CAD
Speed Up Your Product Design
Free

This professional CAD platform enables real-time collaboration on product design from any device. It offers parametric modeling tools, secure cloud storage, and version control, streamlining the design process for teams and individuals. Supports students and educators with free access for non-commercial projects.

Parametric modeling toolsReal-time team collaborationCloud-based data management
πŸ“Š Productivity
(399)
free with in-app purchases
7
STL Simple Viewer
STL Simple Viewer
STL Simple Viewer
Quickly view 3D STL CAD models
Free

Easily view and interact with 3D STL CAD models. Supports various file types and offers advanced rendering options for detailed analysis. Get model information and explore interiors with clipping planes.

View ASCII and Binary STL filesLoad STL from ZIPRotate, pan, and zoom
πŸ“Š Productivity
(847)
free with in-app purchases
8
AutoCAD
AutoCAD
AutoCAD
DWG Viewer & Editor
Free

Access and edit CAD drawings on the go with this official application. It provides essential drafting and design tools for creating, updating, and sharing 2D drawings from any device. Collaborate with teams and simplify workflows by accessing files from various cloud storage services.

2D file viewingCreate, edit, and share 2D drawingsOffline work and sync
πŸ“Š Productivity
(6.3K)
freemium
9
uMake: 3D CAD Modeling, Design
uMake: 3D CAD Modeling, Design
uMake: 3D CAD Modeling, Design
Sketch, Model & Design with AI
Free

Create professional 3D CAD models, architectural designs, and product concepts on your iPad or iPhone. This app offers industrial-grade modeling tools, AI-powered design features, and extensive resources for designers and engineers.

NURBS-based 3D modelingAI design tools for styling and renderingArchitectural and interior design tools
🎨 Graphics & Design
(4K)
free with in-app purchases
10
SketchUp - 3D Modeling
SketchUp - 3D Modeling
SketchUp - 3D Modeling
Interior Design & Architecture
Free

This platform offers intuitive 3D modeling tools for design enthusiasts and professionals. Visualize concepts, create photorealistic visuals, and even use AI to generate design ideas. Scan real-world spaces and view your creations in augmented reality.

3D modeling toolsGenerative AI designsRoom planner & space design
🎨 Graphics & Design
(17K)
free with in-app purchases
11
Sequence :: G-Code editor, CNC
Sequence :: G-Code editor, CNC
Sequence :: G-Code editor, CNC
Machining, CAD Modeling, CAM
Free

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 and M-Code editingCNC and lathe machine code supportCommand list for G-Codes and M-Codes
🎨 Graphics & Design
(62)
free with in-app purchases
12
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 360Β° rotation and zoomSharp detail rendering
πŸ› οΈ Developer Tools
(50)
free with in-app purchases
13
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
πŸ› οΈ Developer Tools
(9.3K)
paid
14
Creality Cloud - 3D Printing
Creality Cloud - 3D Printing
Creality Cloud - 3D Printing
Make 3D Printing Simple
Free

This platform simplifies 3D printing for makers and hobbyists. Explore a vast model library, slice and print directly from your phone, and manage your printer remotely. Connect with a global community, earn rewards for your designs, and enhance your creativity.

Vast 3D model libraryCloud-based slicing and printingRemote 3D printer control
πŸ”§ Utilities
(6.9K)
freemium
15
Polarr: Photo Filters & Editor
Polarr: Photo Filters & Editor
Polarr: Photo Filters & Editor
Endless aesthetics and effects
Free

Enhance your photos with advanced AI tools and a vast library of user-created filters. Edit faces, skies, and backgrounds with precision, or apply global adjustments for a polished look. Discover, create, and share unique aesthetic styles.

AI-enabled retouching toolsSelective AI object editingAdvanced masking options
πŸ“· Photo & Video
(67K)
free with in-app purchases
16
Bazaart AI Photo Editor Design
Bazaart AI Photo Editor Design
Bazaart AI Photo Editor Design
Object and background remover
Free

This AI-powered app simplifies photo and video editing, allowing users to create professional designs without prior experience. It offers tools to remove objects, change backgrounds, generate images from text, and enhance visuals for various purposes, from social media to product photography.

AI object and background removalAI image generation from textAI video creation from product photos
πŸ“· Photo & Video
(259K)
freemium
17
STL Viewer Β· Model File Reader
STL Viewer Β· Model File Reader
STL Viewer Β· Model File Reader
Fast STL File View & 3D Reader
Free

Quickly view and interact with 3D model files. Rotate, zoom, and project models into your environment using augmented reality. Offers customization options and multi-model support.

Fast STL file viewing3D model rotation and zoomAugmented Reality (AR) projection
πŸ“Š Productivity
(2)
free with in-app purchases
18
Text Editor.
Text Editor.
Text Editor.
A must have text editor
Free

A versatile text editor for managing files on your device and in the cloud. Supports various text formats, rich text editing, and custom fonts. Offers cloud integration and sharing capabilities.

Browse and edit cloud filesSupports TXT, RTF, HTML, CSS, JSRich text editing
πŸ› οΈ Developer Tools
(4.2K)
freemium
19
Python Editor App
Python Editor App
Python Editor App
Create and Run your Python 3
Free

Code and run Python 3 scripts directly on your iOS device with a feature-rich editor. Enjoy syntax highlighting, auto-indentation, code completion, and AI-powered code assistance. Optimize your workflow with multi-window support and background script execution.

Create, edit, and run Python 3 scriptsSyntax highlighting, auto-indentation, code completionAI-powered code assistant
πŸ› οΈ Developer Tools
(6.4K)
freemium
20
HTML Editor
HTML Editor
HTML Editor
by Intrepid Corporation LTD
Free

A lightweight HTML editor offering syntax highlighting, code completion, and a live preview. Easily open, edit, and export HTML documents from your device or iCloud. Features dynamic commenting and tag insertion for efficient web development.

Syntax highlightingCode completion suggestionsLive preview panel
πŸ› οΈ Developer Tools
(682)
free with in-app purchases