Free online 3D model converter. Upload your file, choose the target format, and download the result instantly.
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A universal 3D model format converter. Supports GLB, GLTF, OBJ, FBX, STL, 3MF, STEP/STP, PLY, USDZ, 3DS, and DAE. Upload any supported format, choose your target format, and convert with options like mesh optimization, texture embedding, and coordinate system conversion. All processing happens locally in your browser, no files are uploaded.
DefaultGLB
Choose the target 3D format. You can switch formats and re-convert after upload without re-uploading.
GL Transmission Format Binary
GL Transmission Format (JSON + resources)
Wavefront OBJ
Stereolithography mesh
Autodesk FBX
3D Manufacturing Format
ISO 10303 STEP
STEP alternate extension
Polygon File Format
Universal Scene Description ZIP
DefaultY-up
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.
Convention used by OpenGL, Three.js, and most Web 3D engines. Choose this for models from web or game engines.
Convention used by Blender (default), 3ds Max, and some CAD software. Try this if the model appears sideways.
Default0°
Range-180° – 180°
Rotate the model around the X axis (degrees). Useful for correcting axis misalignment or print orientation.
Default0°
Range-180° – 180°
Rotate the model around the Y axis (degrees). Useful for correcting axis misalignment or print orientation.
Default0°
Range-180° – 180°
Rotate the model around the Z axis (degrees). Useful for correcting axis misalignment or print orientation.
DefaultRoot node transform
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.
Rotation is written into all vertex coordinates and applies consistently to every export format; geometry data is rewritten.
Rotation is written as a root node transform while vertex coordinates stay unchanged; better for skinned or animated models, but formats that ignore node transforms (such as STEP) won't apply it.
DefaultSeparated
Choose how textures and buffers are organized in the output.
Export .gltf, .bin, and texture files separately. Suitable for editing individual resources.
Embed all resources as Base64 data URIs in a single .gltf file. Simpler distribution but larger size.
DefaultExport MTL
Include a material definition file (.mtl) referencing texture images.
Generates an .mtl file with material definitions and texture references. Recommended for editing in 3D software.
Output only the .obj geometry file without materials. Simpler but no material information.
DefaultBinary STL
Choose the STL storage format. Both formats produce identical print results.
Smaller file, faster to load. Supported by Cura, PrusaSlicer, Chitubox and all major slicers. Recommended for 3D printing.
Plain text format, readable in any text editor for debugging. File size is ~4-6x larger than binary.
Defaultoff
Export independent meshes as separate STL files packaged in a ZIP archive.
DefaultEmbedded
Choose how textures are packed in the FBX export. Separated ships textures as sidecar files in a ZIP; embedded packs textures into a single FBX file.
FBX plus external texture files, packaged as a ZIP. Easier to swap textures after export.
Textures stored inside the FBX. Simpler single-file handoff for most engines and DCCs.
Default0.001
Range0.0001 – 0.1 · step 0.0001
Tessellation tolerance when converting BREP surfaces to mesh. Lower values keep finer surface detail (larger files); higher values produce a coarser mesh. Range 0.0001-0.1.
Upload any supported 3D format into the universal converter workspace.
Pick GLB, STL, OBJ, FBX, 3MF, or STEP depending on your destination workflow.
Configure format-specific parameters such as binary encoding, MTL, or precision.
Preview the converted geometry in the viewport and download the output file.
You can convert between GLB, GLTF, OBJ, FBX, STL, 3MF, STEP, STP, PLY, and USDZ. Upload any supported format, including 3DS, and choose your desired output.
Texture and material preservation depends on the target format. GLB and GLTF fully support textures and materials. STL only preserves geometry.
Yes. After uploading, you can switch between output formats without re-uploading. Each format change triggers a new conversion.
Yes, every supported format can be converted to any other supported format. Formats such as STEP/STP are tessellated into meshes during conversion, so the result is a mesh approximation rather than the original parametric geometry.
Formats that support vertex colors, such as GLB, GLTF, and 3MF, keep them during conversion. OBJ stores material colors in its MTL file. Formats without color support, such as STL, keep geometry only and drop all color data.
Yes. You can add several files in one session (up to 20) and convert them all with the same output format. Each result is downloaded separately. ZIP archives containing a model with its companion files are unpacked automatically.
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.
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.
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.
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.
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