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Get your model print-ready in four simple steps

Upload

Drag and drop your 3D file in any popular format — OBJ, STL, 3MF, FBX, and more.

Analyze

We automatically scan your model for printing issues like thin walls, holes, and non-printable geometry.

Repair

Our automated repair process fixes issues and optimizes your model for your printer.

Export

Download your print-ready model in OBJ, STL, GLB, or 3MF format.
3D Prep Pro home dashboard showing upload area and recent models

Start here

Create your account

Sign up in under a minute and start preparing your models.

Upload your first model

Learn how to get your 3D files into the platform.

Repair your first model

Fix common 3D printing issues automatically.

Download your results

Export your repaired model in print-ready formats.

Explore the platform

3D Editor

View, inspect, and modify your models with 19 powerful tools — from cutting and lattice infill to measurement and validation.

AI Assistant

Chat with our built-in AI assistant for guidance on repairs, printability, and model preparation.

Plans & Pricing

Start with 2 free repairs, then choose a plan that fits your needs.

Supported file formats

3D Prep Pro works with all major 3D file formats:
FormatExtensionsTexturesColors
Wavefront OBJ.objYesYes
Stereolithography.stlNoNo
3D Manufacturing.3mfYesYes
Autodesk FBX.fbxYesYes
Stanford PLY.plyNoYes
glTF / GLB.gltf, .glbYesYes
VRM (VRoid).vrmYesYes
VRML.wrlYesYes
DICOM (Medical).dcmNoYes
LAS/LAZ (LiDAR).las, .lazNoYes
You can also upload ZIP, RAR, and 7Z archives — we automatically extract and process the 3D files inside.
Need help? Open the AI Assistant in the editor and ask anything about your model. It can analyze issues, suggest fixes, and even run tools for you.