3D File Converter

Upload your 3D model and convert it to any major format instantly. Supports OBJ, FBX, GLTF, GLB, STL, DAE, PLY, 3DS, BLEND, STEP, IGES, USD, and USDZ. Fast, secure, and no software installation required.

Drag and drop your 3D model here or browse
Supports OBJ, FBX, GLTF, GLB, STL, DAE, PLY, 3DS, BLEND, STEP, IGES, USD, USDZ

All Converter Tools

31 tools

Convert between 13+ 3D file formats. Every conversion pair has a dedicated tool page with optimized settings. Universal drag-and-drop, automatic scale normalization, up-axis correction, and transform baking on every conversion.

3DS to FBX

Convert legacy 3D Studio DOS-era files to Autodesk FBX for modern game engines, animation, and DCC tools.

3DS to OBJ

Convert legacy 3DS models to Wavefront OBJ, the most universally supported 3D mesh format for Blender, Maya, and 3ds Max.

BLEND to OBJ

Export Blender native .blend projects directly to OBJ. Preserves meshes, materials, and UVs using Blender's own engine.

DAE to GLTF

Convert COLLADA Digital Asset Exchange files to glTF for web rendering with three.js, Babylon.js, or AR Quick Look.

DAE to OBJ

Convert COLLADA DAE files from SketchUp, Revit, or Maya to Wavefront OBJ for universal compatibility.

FBX to DAE

Convert Autodesk FBX to COLLADA DAE format, ideal for interchange between game engines and architectural visualization tools.

FBX to GLTF

Convert Autodesk FBX to glTF 2.0 for web, mobile AR, and real-time engines like Unity, Unreal, and Godot.

FBX to OBJ

Convert Autodesk FBX with animation, skeletons, and materials to Wavefront OBJ mesh format.

FBX to STL

Convert game-ready FBX models to STL for 3D printing, slicing in Cura or PrusaSlicer, and rapid prototyping.

GLB to OBJ

Extract meshes from binary glTF (GLB) containers and convert to editable Wavefront OBJ format.

GLTF to FBX

Convert web-standard glTF to Autodesk FBX for use in Unreal Engine, Maya, 3ds Max, and Blender pipelines.

GLTF to GLB

Convert text-based glTF (.gltf + .bin + textures) to binary GLB, a single-file container for web delivery and CDN hosting.

GLTF to OBJ

Convert glTF 2.0 with PBR materials to Wavefront OBJ for editing in Blender, ZBrush, or Marmoset Toolbag.

IGES to OBJ

Convert CAD IGES (.iges/.igs) files to polygon OBJ meshes using OpenCASCADE tessellation.

IGES to STL

Convert engineering IGES CAD files to STL for 3D printing with configurable chord height and angular tolerance.

OBJ to DAE

Convert Wavefront OBJ to COLLADA DAE, the open standard XML format for interactive 3D applications.

OBJ to FBX

The most popular conversion. Export OBJ meshes to Autodesk FBX with material slots preserved for game engines.

OBJ to GLTF

Convert OBJ models to glTF 2.0 with optional Draco mesh compression and PBR material conversion.

OBJ to PLY

Convert OBJ meshes to Stanford PLY for photogrammetry, 3D scanning workflows, and point cloud processing.

OBJ to STL

Convert OBJ to STL for 3D printing. Supports both ASCII and binary STL output for Cura, PrusaSlicer, and Bambu Studio.

PLY to GLTF

Convert PLY scan data and photogrammetry output to glTF for interactive web visualization of 3D scans.

PLY to OBJ

Convert Stanford PLY files from 3D scanners (Artec, EinScan) to editable Wavefront OBJ meshes.

PLY to STL

Convert 3D scan PLY data to watertight STL meshes for 3D printing and fabrication.

STEP to OBJ

Convert ISO 10303 STEP CAD solids from SolidWorks, CATIA, Fusion 360 to polygon OBJ meshes with tessellation control.

STEP to STL

Convert parametric CAD STEP files to STL for 3D printing. Fine-tune chord height and angular deflection.

STL to FBX

Convert 3D-printable STL meshes to Autodesk FBX with proper face normal reconstruction for game engines.

STL to GLTF

Convert STL stereolithography files to glTF for embedding 3D-printable models in web viewers and AR experiences.

STL to OBJ

Convert 3D printing STL files to editable OBJ meshes. Used for remixing, modifying, and customizing printable models.

USD to GLTF

Convert Pixar Universal Scene Description files (.usd/.usda) to glTF for web deployment and real-time rendering.

USD to OBJ

Extract geometry from Pixar USD composition scenes to Wavefront OBJ for use in Blender, Maya, and Houdini.

USDZ to GLTF

Convert Apple USDZ AR Quick Look files to glTF for cross-platform web and Android AR deployment.

FORMATS

Supported 3D File Formats

Import and export across 13+ 3D file formats for game development, 3D printing, CAD, and VFX pipelines.

Mesh Formats

OBJ (.obj): Universal mesh format with UV and material support. FBX (.fbx): Industry standard with animation, skeletons, and embedded textures. glTF (.gltf): Web-optimized with PBR materials. GLB (.glb): Binary glTF container for single-file delivery. STL (.stl): 3D printing format, ASCII and binary. DAE (.dae): COLLADA XML-based interchange. PLY (.ply): 3D scanner and photogrammetry format. 3DS (.3ds): Legacy 3D Studio format. BLEND (.blend): Blender native project.

CAD Formats

STEP (.step/.stp): ISO 10303 solid models from SolidWorks, CATIA, Fusion 360, FreeCAD. IGES (.iges/.igs): Legacy CAD exchange for engineering data. Both convert to polygon meshes via OpenCASCADE tessellation.

Scene Formats

USD (.usd/.usda): Pixar Universal Scene Description for VFX pipelines and composition. USDZ (.usdz): Apple AR Quick Look format for augmented reality. Both extract to standard mesh formats for web and real-time use.

WORKFLOWS

Converter Workflows

Common conversion pipelines using Geometry Labs tools.

Game Development

FBX to GLTF for Unity and Godot
OBJ to FBX for Unreal Engine
GLTF to GLB for optimized web delivery
LOD Generator for performance optimization
Mesh Decimator for mobile asset budgets

3D Printing

OBJ, FBX, DAE to STL for slicing
STEP, IGES to STL for CAD to print
STL to OBJ for model editing and remixing
Mesh Repair for watertight 3D prints
Mesh Decimator for reduced print time

Web and AR/VR

Any format to GLTF/GLB for three.js
USDZ to GLTF for web viewers
Draco-compressed GLB output
PBR texture generation for real-time materials
ORM Packer for optimized shader textures

CAD and Engineering

STEP, IGES to OBJ for rendering
CAD solids to polygon meshes
Parametric to polygon conversion
Unit Converter for accurate scaling
Scale Reference for real-world validation

FAQ

Frequently Asked Questions

Yes, completely free. You can convert up to 3 files per day without an account at full quality. Sign up for a free account to get more daily conversions, and upgrade to Pro for unlimited conversions with priority processing.
We support 13+ formats: OBJ, FBX, GLTF, GLB, STL, DAE (COLLADA), PLY, 3DS, BLEND, STEP (.step/.stp), IGES (.iges/.igs), USD (.usd/.usda), and USDZ. You can convert between any pair of these formats. Imports are validated and transforms are normalized so your model appears correctly in the target application.
Yes. Our converter automatically normalizes every model. It bakes object transforms, centers the model at origin, grounds it at Y=0, detects and corrects the up-axis (Y-up for glTF/GLB, Z-up for Blender/Max exports), and rescales extreme outliers. Whether your file comes from Maya, Blender, 3ds Max, Houdini, or Unreal Engine, the output will be clean and correctly oriented.
Your uploaded files are processed on secure servers and automatically deleted 1 hour after conversion. We do not store, share, or inspect your 3D models beyond what's needed for the conversion itself. All file transfers use encrypted HTTPS connections.
STEP and IGES are parametric CAD formats. Our converter transforms them into polygon meshes using OpenCASCADE. Complex solids with non-manifold geometry, extremely large assemblies, or corrupt files may fail. Try exporting a simpler selection from your CAD software first.
We use Blender's own import/export engine on the server to read .blend files and write them to your chosen format. This ensures full support for Blender-specific features including modifiers, material slots, and armatures. Make sure your .blend file was saved with all assets packed.
Texture coordinates (UVs) are preserved across all format conversions. Material properties are preserved to the extent the target format supports them. glTF/GLB preserves PBR metallic-roughness materials best, while OBJ preserves basic diffuse colors and texture references. For best material fidelity, convert to GLTF or GLB.
No software installation is required. The entire conversion process runs in your browser with our cloud backend handling the heavy lifting. No plugins, no extensions, no downloads. Just upload, convert, and download.
SUPPORT

Support the Development

Geometry Labs is built and maintained by a solo developer and 3D enthusiast. Your subscription directly funds server costs, format research, and new tool development.

Basic
€3.67/month

20 conversions/day, 100MB files, all tools access, no ads, priority processing.

Compare plans
Most Popular
Pro
€9.19/month

Unlimited everything. 500MB files, batch processing, API access, no ads.

Compare plans
Team
€22.99/month

Everything in Pro for up to 5 members, team workspace, admin dashboard, priority support.

Compare plans