Q
How many models can I convert at once?
A
Up to 20 models per batch. If you add more, only the first 20 are processed and the rest are skipped with a notice.
Batch Model Conversion
Upload multiple models or ZIP archives and batch convert them to your target format.
Workspace
Drop files here
or click to browse, paste supported
About This Tool
Convert multiple 3D models or ZIP archives to a single target format in one batch. Supports GLB, GLTF, OBJ, FBX, STL, 3MF, STEP, PLY, USDZ and more. Auxiliary materials and textures are auto-matched from file references. All conversion runs locally in your browser, so files never leave your device.
About Configuration Options
General Settings
| Option | What it does | Default / range |
|---|---|---|
Up axis | Determines the 'up' axis of the exported model. Different 3D software uses different conventions. Selecting the wrong system may cause the model to lie on its side.
| Y-up |
Rotation X | Rotate the model around the X axis (degrees). Useful for correcting axis misalignment or print orientation. | 0°-180° – 180° |
Rotation Y | Rotate the model around the Y axis (degrees). Useful for correcting axis misalignment or print orientation. | 0°-180° – 180° |
Rotation Z | Rotate the model around the Z axis (degrees). Useful for correcting axis misalignment or print orientation. | 0°-180° – 180° |
Rotation Application | Choose how rotation is written to the exported model. Baking into vertices rewrites all vertex coordinates so every export format (including geometry-only formats such as STL and STEP) applies it consistently; root node transform keeps the original vertex coordinates, which is friendlier to animated or skinned models, but formats that ignore node transforms (such as STEP) won't apply the rotation.
| Root node transform |
Batch Settings
| Option | What it does | Default / range |
|---|---|---|
Output Format | Select the target format for all input files in the sidebar, then adjust general and format-specific settings below. GLB · GLTF · OBJ · STL · FBX · 3MF · STEP · STP · PLY · USDZ | GLB |
Format Information
Input format
- Extension:
- Model
- Full Name:
- Multiple 3D Model Formats
- Type:
- Multiple 3D Models
- Format:
- GLB, GLTF, OBJ, FBX, STL, 3MF, STEP/STP, PLY, USDZ
- Tools:
- Blender
- Open With:
- 3D Model Viewer
- Description:
- Batch model conversion supports GLB, GLTF, OBJ, FBX, STL, 3MF, STEP/STP, PLY, and USDZ. Drag and drop multiple files for automatic processing.
Notes:
- All files must use the same output format
- Files are processed locally in your browser
- Larger batches may take longer to process
Supported Features:
- Batch processing of multiple files
- Support for GLB, GLTF, OBJ, FBX, STL, 3MF, STEP/STP, PLY, USDZ
- Automatic file-by-file conversion
- Real-time progress tracking
- ZIP download of all converted files
Output format
- Extension:
- Model
- Full Name:
- Selected Output Format
- Type:
- Multiple 3D Models
- Format:
- GLB, GLTF, OBJ, FBX, STL, 3MF, or USDZ
- Tools:
- Blender
- Open With:
- 3D Model Viewer
- Description:
- All input files are converted to the selected output format. The converted files are packaged into a ZIP archive for easy download and distribution.
Notes:
- Output files are provided as a ZIP archive
- Individual options may not apply to all input types
- Check each converted file individually if issues arise
Supported Features:
- All files converted to a single target format
- Packaged as ZIP archive for easy download
- Supports GLB, GLTF, OBJ, FBX, STL, 3MF, USDZ output
Frequently Asked Questions
View all FAQsAbout this tool
Q
Can I upload ZIP archives?
A
Yes. ZIP files are extracted automatically and each model inside is added as a separate job. You can also mix individual model files and ZIP archives in one batch.
Q
Can each file be converted to a different format?
A
No. One output format is selected for the entire batch. This keeps bulk conversion fast and consistent: choose GLB, OBJ, STL, FBX, or any other supported format before converting.
Q
How are MTL, textures, and other auxiliary files handled?
A
Upload them together with your models or include them inside a ZIP. The tool reads file references inside each model and matches auxiliary files automatically. Unmatched files are reported as a warning.
Q
What if some files fail during batch conversion?
A
Each model is processed independently. Failures are marked in the file list while successful models remain available for download individually or as part of the ZIP package.
Q
What formats can I convert between?
A
You can convert to GLB, GLTF, OBJ, FBX, STL, 3MF, STEP, STP, PLY, and USDZ. Upload any supported input format including 3DS, and all models in the batch will be converted to your chosen output format.
Q
Are textures and materials kept for every file in the batch?
A
It depends on the format you picked for the batch. GLB and GLTF keep textures and materials; STL keeps geometry only.
General questions
Q
Is Any3D completely free?
A
Yes, Any3D's core features are free to use forever. We provide format conversion, model optimization, and online preview at no cost, with no registration required.
Q
Are my files uploaded to your servers?
A
No. Files you select are processed only in your browser on this device, so they never leave your device and are never sent to our servers. We don't store any user files; after processing, related data in browser memory is released.
Q
Do I need to install software?
A
No installation required. Any3D is entirely browser-based; just open the webpage to use all features. It works on Windows, Mac, Linux, and other major operating systems.
Q
Is there a file size limit?
A
The processing capacity depends on your device performance and the model's vertex count and texture complexity, rather than file size alone. We impose no file size limit, but when a model exceeds what your device can handle, the page may lag or even crash.