Free online STL to OBJ converter

How to convert 3D models from STL format to OBJ. Available stl to obj converters.

Convert STL to OBJ online - free

.stl .obj

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How to convert stl to obj file

June 7, 2026
3D modeling
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Considering both the STL (3D printing format) and OBJ (3D object) files contain 3D/CAD data, it should be possible to convert or export one format to another using a dedicated CAD converter or CAD software. Such stl to obj conversion will most likely work best with meshes only.

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Understanding STL and OBJ file formats

The STL (Stereolithography) file format is widely used in 3D printing and computer-aided design. It represents the surface geometry of a 3D object without any color, texture, or other attributes. On the other hand, the OBJ file format is a more versatile 3D model format that can include color and texture information, making it suitable for a variety of applications, including 3D modeling and animation.

How to convert STL to OBJ

Converting an STL file to an OBJ file can be beneficial if you need to add textures or colors to your 3D model. Here are the steps to perform this conversion:

Best software for STL to OBJ conversion

One of the best software options for converting STL to OBJ is Blender. Blender is a free and open-source 3D creation suite that supports a wide range of file formats.

Steps to convert using Blender

Open Blender and go to File → Import → STL to import your STL file.
Once the file is imported, you can make any necessary adjustments to the model.
To export the file as an OBJ, navigate to File → Export → Wavefront (.obj).
Choose your desired export settings and save the file.

Alternative software options

Other software options for converting STL to OBJ include MeshLab and FreeCAD. Both are free and offer robust tools for 3D model conversion and editing.

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STL vs OBJ: format comparison

How the STL and OBJ formats compare on the properties that matter most for this conversion.

Comparison of the STL and OBJ file formats
Property	.STL Stereolithography	.OBJ Wavefront OBJ
Geometry	Polygon mesh	Polygon mesh
Materials	No	Limited
Textures	Not supported	Referenced externally
Animation	No	No
Scene hierarchy	No	No
Plain-text readable	Yes	Yes
Typical file size	Small	Medium
Open standard	Partly open	Yes
Introduced	1987	1990
Developer	3D Systems	Wavefront Technologies
MIME type	model/stl	model/obj

Open STL file Open OBJ file

Suggested software and links: stl to obj converters

3D Builder

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3ds Max

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AccuTrans 3D

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Afanche 3D Viewer

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Autoconverter

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AutoQ3D for Mac

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Clara.io

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CloudCompare

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FreeCAD

An open source multiplatform 3D CAD/MCAD/CAx/CAE/PLM modeler

IVCon

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meshconv

A 3D mesh converter

Meshlab

An open source system for 3D triangular meshes

modo

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Online 3D Model Converter

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Online CAD converter

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Pepakura Designer

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PolyTrans|CAD+DCC

A 3D and CAD file formats conversion software

Frequently asked questions

Is the STL to OBJ converter free?

Yes, converting STL to OBJ on 101convert.com is completely free. No registration, email address or installation is required.

How large can my STL file be?

You can upload STL files up to 50 MB and convert up to 1 files at once in a single batch.

What happens to my uploaded files?

Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.

Do I need to install any software to convert STL to OBJ?

No. The STL to OBJ conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.

Did the conversion fail?

In most cases, the cause is an incorrect file format. Please upload a valid STL file for this STL to OBJ conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.

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Additional formats for
stl file conversion

Reverse conversion

obj to stl

Convert to obj from
other formats

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