STL to OBJ File Converter: Free & Online

Convert 3D models from .STL to .OBJ file format and prepare for printing in one app.

Trusted by 10,000+ engineers
No Limits
Automatic Mesh Repair
SSL & Auto-Delete
Video coming soon

Read our step-by-step guide:

Which STL to OBJ Converter Is Best for You?

Compare STL to OBJ converters and find the best fit for your workflow.

MeshInspector
MeshInspector
Other Converters
Speed
Ultra-fast Local processing
Fast
Slow
File Size Limits
Unlimited
Unlimited
File size limit (50 MB)
File Number Limits
Unlimited
Unlimited
Usually single file only
Folder Support
Full folder import
Full folder import
Not supported
Assembly Conversion
Partial or full assembly
Partial or full assembly
Not supported
Mesh Validation
Integrated
Integrated
Not supported
Auto Mesh Repair
Advanced
Advanced
Not supported
Mesh Repair Options
Advanced
Advanced
Not supported
Accuracy Control
Full
Full
Not supported
3D Viewer
Advanced
Advanced
Basic or no preview
3D Editor
Advanced
Advanced
Not supported
Security & Privacy
100% Local
SSL + Auto-delete
Files often stored on servers
Cross-Platform
Windows, macOS, Linux
All devices
Web only, limited mobile UX
Suitable for
Professionals and engineers
Quick online conversions
Not recommended

Ready to Convert Your STL Files?

Join thousands of engineers who trust MeshInspector for their 3D file conversion needs. Start converting today with no limits and professional results.

How to Convert STL to OBJ with MeshInspector Software

When preparing 3D objects, the MeshInspector program makes it really easy to convert STL files into OBJs. Export your STL model as a single OBJ file while preserving geometric precision and ensuring the result is ready for any creative or engineering workflow.

1

Opening STL files

To kick off the conversion from STL to OBJ, launch our program. Once the MeshInspector is open, head over to ‘Open Files,’ the very section shown in the screenshot.

2

Browsing STL files

The MeshInspector program will then prompt you to locate the STL file you want to convert. Click on ‘Browse’ to open the directory, navigate to your desired file, and proceed with selection.

3

Viewing STL files

You can now view the source file for conversion. It is fully accessible from any angle, allowing you to prepare it as needed.

4

Exporting the STL File

Your next stop is the ‘Export’ button located in the ‘Home’ tab. Once your STL model is selected in MeshInspector’s scene tree, go ahead and click the button.

5

Setting OBJ format

After selecting ’Export,’ open the drop-down list of available formats. Then, choose OBJ. You can also rename your object if needed. Finally, click ’Save’ to complete the process.

6

Inspecting the OBJ Size

With your OBJ uploaded, you can start by inspecting its size. While OBJ files are capable of storing additional data such as colors and texture coordinates, this specific model contains none. Go to ‘Inspect.’ In that tab, click on ‘Bounding Box.’ All dimensions will be shown.

7

Adjusting the OBJ Size

Here, your option is ‘Transform,’ under ‘Information’ in the scene tree. Use the scaling bar by dragging it. Make sure to apply the changes by clicking on the checkmark. Both the dimensions and volume of your model will change once you finalize.

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