Best Free Stl Viewer Apps

198+ iOS apps curated and reviewed

4.0 avg rating
20 free apps
Updated June 2026

With an average user rating of 4.0โ˜…, the free stl viewer category is one of the App Store's strongest. Browse all 198+ apps we track, sorted so the most loved ones surface first.

Top Picks for Free Stl Viewer

STL Simple Viewer#2

STL Simple Viewer by Victor Bovio

Quickly view 3D STL CAD models
Strong Contender
๐Ÿ“Š Productivity
4.3๐Ÿ˜ž(721 ratings)
FreeAdsIn-App Purchases
STL Simple Viewer screenshot 1
STL Simple Viewer screenshot 2
STL Simple Viewer screenshot 3
STL Simple Viewer screenshot 4

View 3D STL CAD models with ease using our app. Features include support for both ASCII and Binary STL files, graphic operations for manipulation, and rendering options for detailed viewing. Contact us at support@boviosoft.com for more information.

What We Love

  • ๐Ÿš€ Simple and intuitive viewer
  • ๐Ÿ‘ Useful viewing options
  • ๐Ÿ’ก Supports multiple file formats

Room to Improve

  • ๐Ÿ› Frequent crashes
  • ๐Ÿ”‹ High battery consumption
  • ๐Ÿšจ Excessive and intrusive ads
STL File Viewer Pro#3

STL File Viewer Pro by Andeesh Mehdi Syed

Simplest Way To View STL Files
Worth Considering
๐Ÿ› ๏ธ Developer Tools
4.4(50 ratings)
FreeAdsIn-App Purchases
STL File Viewer Pro screenshot 1
STL File Viewer Pro screenshot 2
STL File Viewer Pro screenshot 3

View and interact with your 3D STL models with ease, rotating, zooming, and inspecting them with smooth and intuitive gestures. Download now to explore your 3D models in a comfortable and efficient way, perfect for 3D printing, CAD modeling, and more.

More Free Stl Viewer apps to explore

4
STL Master
STL Master
STL Master
STL File Viewer + AR & Sharing
Free

Explore intricate 3D models with ease using this powerful STL file viewer with AR capabilities. View, manipulate, and showcase your designs in augmented reality for a truly immersive experience. Embark on a new dimension of creativity today!

๐Ÿ”ง Utilities
(49)
5
3D Model Viewer - AR & Print
3D Model Viewer - AR & Print
3D Model Viewer - AR & Print
Simulate 3D Printing and AR
Free

Experience immersive 3D models in augmented reality with this app. Bring virtual objects to life in your surroundings with realistic textures and interactive features. Download now to explore endless possibilities in the world of 3D modeling.

๐Ÿ“Š Productivity
(318)
6
exocad webview
exocad webview
exocad webview
Fast STL 3D Viewer
Free

Load 3D models quickly and easily in a free viewer that supports common file formats like STL, OBJ, and PLY. Seamlessly view and adjust 3D meshes on any mobile device, with features like mesh transparency and texture mapping, and try it out for free without registration.

๐Ÿ”ง Utilities
(14)
7
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

View 3D models on your iPhone or iPad with support for over 20 popular file formats, including STL, OBJ, FBX, and more. Download to explore your 3D files anytime, anywhere.

๐Ÿ”ง Utilities
(35)
8
DWG FastView-CAD Viewer&Editor
DWG FastView-CAD Viewer&Editor
DWG FastView-CAD Viewer&Editor
* Support 2D/3D CAD formats
Free

DWG FastView-CAD Viewer allows users to view, edit, and share CAD drawings on mobile devices with ease. This intuitive app enables quick access to important design files anytime, anywhere. Access professional-grade features on-the-go and streamline your CAD workflow today.

๐Ÿ“Š Productivity
(50)
9
STL Viewer ยท Model File Reader
STL Viewer ยท Model File Reader
STL Viewer ยท Model File Reader
Fast STL File View & 3D Reader
Free
๐Ÿ“Š Productivity
(2)
10
3D Model Viewer: STL & USDZ
3D Model Viewer: STL & USDZ
3D Model Viewer: STL & USDZ
View 3D USDZ and CAD STL, PLY
Free
๐Ÿ“Š Productivity
(4)
11
3D Model Viewer & Converter
3D Model Viewer & Converter
3D Model Viewer & Converter
STL,GLB,3MF,OBJ,DXF,USDZ ...
Free
๐Ÿ“Š Productivity
(1)
12
3D Model Viewer - AR View
3D Model Viewer - AR View
3D Model Viewer - AR View
View model in AR and 3D mode
Free

View and interact with various 3D models in AR and 3D mode using this advanced model viewer. Enjoy features like custom backgrounds, shadow casting, and support for multiple file formats. Share and save screenshots, access files locally or from the cloud, and get detailed model information. For feedback or support, email belighten@gmail.com.

๐Ÿ“Š Productivity
(323)
13
3D Kit: STL Viewer
3D Kit: STL Viewer
3D Kit: STL Viewer
CAD Model & Print Preview AR
Free
๐ŸŽจ Graphics & Design
(0)
14
Mes3D: 3D Model Viewer & AR
Mes3D: 3D Model Viewer & AR
Mes3D: 3D Model Viewer & AR
Supports STL, GLB, OBJ, USDZ
Free
๐Ÿ”ง Utilities
(1)
15
3D Viewer by Chief Architect
3D Viewer by Chief Architect
3D Viewer by Chief Architect
by Chief Architect
Free

Experience immersive virtual reality home projects with 3D Viewer. Visualize and navigate your designs using Sojourn 3D tools, walk or fly through models, and explore various views. Perfect for builders and designers wanting to share virtual models with clients.

๐Ÿ“Š Productivity
(490)
16
Winmail Viewer - Letter Opener
Winmail Viewer - Letter Opener
Winmail Viewer - Letter Opener
Open Email, MSG & XPS files
Free

View and manage email attachments with ease using this application. Say goodbye to compatibility issues with various file formats and streamline your email attachment viewing experience. Try it now for a hassle-free email management solution.

๐Ÿ”ง Utilities
(4.5K)
17
ModelPlay-3D Model Viewer
ModelPlay-3D Model Viewer
ModelPlay-3D Model Viewer
Support GLB FBX OBJ STL PLY
Free

ModelPlay is a versatile 3D model viewer for mobile devices, supporting various import formats like GLB, FBX, OBJ, and more. Users can easily customize lighting, backgrounds, materials, animations, and more, without needing professional 3D knowledge. Experience stunning 3D effects and provide feedback for future updates!

๐ŸŽจ Graphics & Design
(6)
18
GCode Scanner & STL Viewer
GCode Scanner & STL Viewer
GCode Scanner & STL Viewer
Interpret CNC machine code
Free
๐Ÿ”ง Utilities
(2)
19
iFilemonger
iFilemonger
iFilemonger
Viewer for design and 3D files
Free

This web-based viewer allows users to browse and interact with design and 3D files, including rotating, zooming, and moving objects, and supports various formats such as DXF, IGES, and STL. Try it out by browsing to a file or ZIP archive on the web or accessing files on your device to start viewing and interacting with your 3D files.

๐Ÿ“Š Productivity
(16)
20
STL Viewer: 3D Model & Print
STL Viewer: 3D Model & Print
STL Viewer: 3D Model & Print
View, measure & export 3D STL
Free
๐Ÿ”ง Utilities
(0)