STL to OBJ Converter

Free online 3D file converter — convert your STL to OBJ format in seconds

1Choose Files

2Convert To

3Convert Now

Drag & drop your STL file here or click to browse

Max. size 50MB

obj

How to Convert STL to OBJ

Transform your 3D model from STL to OBJ in three simple steps

Step 1

Upload Your STL File

Select the STL file you want to convert from your computer, Google Drive, or OneDrive. You can also drag and drop it directly into the upload area.

Step 2

Select OBJ as Output

Choose OBJ as your desired output format. Our 3D converter will handle the rest automatically.

Step 3

Download Your OBJ File

Click "Export" and download your converted OBJ file in seconds. Your 3D model is ready to use.

STL vs OBJ: Format Comparison

Understanding the key differences between STL and OBJ helps you choose the right 3D format for your workflow

Feature	STLSTL	OBJOBJ
File Extension	.stl	.obj
Geometry Data	✓ Supported	✓ Supported
Color Support	✗ Not supported	✓ Supported
Texture Mapping	✗ Not supported	✓ Supported
3D Printing Compatible	✓ Supported	✓ Supported
Animation Support	✗ Not supported	✗ Not supported

What is a STL File?

STL Converter

The Stereolithography (STL) format stores surface geometry as triangulated mesh data. It is the universal standard for 3D printing but lacks support for colors, textures, and materials.

What is a OBJ File?

OBJ Converter

OBJ is a widely supported 3D model format that supports vertex positions, texture coordinates, normals, and materials via companion MTL files. It is ideal for editing and rendering workflows.

Frequently Asked Questions

Everything you need to know about converting STL to OBJ

Upload your STL file using the drag-and-drop area above, select OBJ as the output format, and click "Convert Now." Your converted file will be ready to download in seconds. No software installation is needed.

The geometry of your 3D model is fully preserved during conversion. However, format-specific features like textures, materials, or animations may not carry over if the target format does not support them. The mesh shape and dimensions remain identical.

Yes, you can upload multiple files at once. Simply drag and drop all the 3D models you want to convert into the upload area, or use the Choose Files button to select several at once. Each will be processed individually.

Yes, our 3D converter is completely free for basic use. You can convert files up to 50MB without creating an account. For larger uploads or batch processing, we offer affordable premium plans.

Absolutely. All transfers are encrypted using SSL/TLS. Your 3D models are processed on secure servers and automatically deleted within 24 hours. We never share, sell, or access your data.

No, our converter works entirely in your web browser. There is nothing to download or install. Upload your file, choose the output format, and click to convert.