Scans and 3D printing
STL in millimeters
Take scans and 3D models to the format 3D printers accept, with the size in millimeters.
Online 3D file converter and viewer
Convert GLB, OBJ, STL, FBX, PLY, GLTF and USDZ for free and view 3D models right in the browser — rotate, inspect the mesh, see vertices and dimensions. Nothing to install and no file upload.
GLBGLTFOBJSTLPLYFBXDAEUSDZ
Convert toA single file, with textures — the best for the web
Open any file
Drag the model into the scene. For GLTF and OBJ with external files, select the .bin, the .mtl and the textures together. GLB with Draco or Meshopt compression also opens.
Inspect the mesh
Switch between solid, wireframe, clay and normal map. Hide parts, select objects with a double-click and check vertices, triangles and dimensions.
Convert and download
Choose the output format and download. You can also save a PNG image of the scene — even with a transparent background.
Most searched conversions
Each conversion has its own page, with the step by step, tips and the limits of what it does.
Apple format
USDZ
Open USDZ models or generate USDZ from GLB.
For the web and 3D programs
GLB and OBJ
Switch between the formats most used on the web and in modeling programs.
How do I convert and view 3D files online with WebFaz 3D?
WebFaz 3D is a free 3D file converter and viewer that runs in your browser: the model is not sent to any server. The model that appears when the page opens is a demonstration — you can already test the view modes and the conversion. Open your own file to replace it.
How to convert GLB to OBJ, STL to GLB, FBX to GLTF and others. Open the file (GLB, GLTF, OBJ, STL, PLY, FBX, DAE or USDZ), choose the output format under “Convert to” and click “Convert and download”. GLB and GLTF keep materials, textures and animations. OBJ, STL and PLY store the geometry (PLY also keeps vertex colors). USDZ is for viewing the model in augmented reality (AR Quick Look) on iPhone and iPad. The conversion exports what is visible: objects hidden in the list are left out.
Online 3D viewer. Drag to rotate, right-click (or two fingers) to pan, wheel to zoom. Switch between solid, wireframe, clay and normal map, use front/top/side views, see vertices, triangles, materials and dimensions, and save a PNG image (even with a transparent background). Shortcuts: R frames the model, W toggles wireframe, G shows or hides the grid.
For 3D printing, Blender and the web. Convert models to STL to slice and print, to OBJ to open in Blender, Maya or 3ds Max, or to GLB to use on websites, games and augmented reality. If the GLTF has external files, select the .bin and the textures together; for OBJ, the .mtl. GLB with Draco or Meshopt compression also opens.
Limits. Files up to 400 MB. KTX2/Basis textures are not supported. Since everything runs on your device, very heavy models depend on your graphics card’s memory.
About 3D
Views and converts 3D models between formats such as GLB, GLTF, OBJ, STL, FBX, PLY and USDZ, showing vertices and dimensions.
What this 3D converter does
A viewer and converter that runs in the browser, to check a model before using it and take it to the format your program accepts. The features that stand out:
Converts between the most used 3D formats
Opens GLB, glTF, OBJ, STL, PLY, FBX, DAE and USDZ (including iPhone scans) and converts to GLB, glTF, OBJ, STL, PLY or USDZ (Apple’s augmented reality format). GLB gathers everything, textures included, in a single file: the best for the web. Not every conversion preserves textures and animations.
Opens files with textures and compressed GLB
For glTF and OBJ with external files, select the .bin, the .mtl and the textures together. GLB with Draco or Meshopt compression also opens.
Mesh and dimension inspection
See vertices, triangles, meshes, materials, textures, animations and the model’s dimensions, and hide or show parts in the object tree.
View modes to analyze the model
Switch between Solid, Wireframe, Clay and Normals, and use ready views (front, top, side and isometric), grid, axes, bounding box and orthographic camera.
PNG image of the scene, with a transparent background
Save a PNG image of the model as it is on screen, even with a transparent background, or open it in full screen.
Scene appearance
Adjust the background color, shadows, auto-rotation and light intensity to see the model under different conditions.
Nothing to install and no model upload
Reading and conversion happen in the browser, using your device’s graphics card.
A practical example
A friend sends you an OBJ model to 3D print, but the slicer asks for STL. You open the OBJ in the tool, rotate the model to check that no parts are missing, check the dimensions and the vertex count, choose STL as the output and download the converted file.
How to use it
- Upload the model.
- Rotate, zoom and check the information.
- Choose the output format.
- Download the converted file.
Limits and cautions
- Not every conversion preserves textures and animations.
- Very heavy models depend on the device’s graphics card and memory.
A ferramenta em uma imagem
Os pontos de clique estão numerados. Toque na imagem para vê-la em tamanho original. As demais telas, passo a passo, estão no guia “Como funciona”.
- Point 1: Open a model (GLB, glTF, OBJ, STL, PLY, FBX, DAE…) or drag the file onto the central area.
- Point 2: Switch the display mode (solid, wireframe, clay, normals) and the views (front, top, side, isometric).
- Point 3: Save a PNG image of the current view.
- Point 4: Convert the model to another format by choosing the output one.
When to use it
- Preparing a model for 3D printing, converting it to STL.
- Publishing a model on a website using GLB, which loads fast and carries everything in a single file.
- Checking the dimensions and mesh of a received model before using it.
Tips
- For the web, prefer GLB: it embeds textures and is well supported by viewers.
- Check the dimensions shown: models exported in different units (millimeters, meters) arrive very large or very small.
- Keep the original file, since some conversions discard textures and animations.
What happens in your browser
The model is loaded in the browser and drawn with WebGL, the graphics technology that uses your device’s graphics card. The input and output formats are the ones listed on the page (GLB, GLTF, OBJ, STL, FBX, PLY and USDZ), each with its own purpose: GLB and GLTF are preferred for the web, STL is the standard for 3D printing, and USDZ is Apple’s augmented reality format.
Each format stores different information. STL, for example, has only the geometry (triangles), with no colors, textures or animations. When converting from a rich format to a simple one, whatever the target does not support is lost.
Reading and conversion happen locally. Your model file is not sent to WebFaz.
Read the full guide: real-world use cases, tips and limits →
Privacy: This tool runs entirely in your browser: your files and data are not sent to any WebFaz server. Learn more.
Perguntas frequentes
- Which format should I use for the web?
- GLB is the best format for displaying 3D models on websites.
- Is my model sent to any server?
- No, the conversion is local.
- What is the difference between GLB and GLTF?
- They are the same standard. GLTF usually comes as several files (description, textures, data); GLB gathers everything in a single binary file.
- Why did my model lose its colors?
- The target format may not store colors and textures, like STL. Choose GLB or GLTF if you need them.
- Can I convert for 3D printing?
- Yes: STL is the format most accepted by 3D printing programs. Check the scale and dimensions before printing.
- Why are heavy models slow?
- The viewing uses your device’s graphics card and memory. Models with millions of triangles demand more.
- Do I need to install any program?
- No. Everything runs in the browser.