3D Model Analyzer

Load a model and instantly see vertex count, physical size, volume, and watertight status, all right in your browser.

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About This Tool

After loading a supported 3D file, you can inspect file size, vertex and face counts, mm-accurate dimensions, volume, surface area, watertight status, mesh quality, materials, textures, and animations.

Tips

1Copy the full analysis report with one click
2Watertight means every edge is shared by exactly two triangles
3If the model has animations, all clips play by default
4Dimensions are converted when the file includes length units

About Configuration Options

Model info

File format

Extension of the uploaded file (e.g. GLB, STL, OBJ).

File size

Total size of the uploaded model file on disk.

Data footprint

Estimated GPU usage for geometry buffers plus textures (including mipmaps).

Geometry

Vertices

Number of vertices in the mesh geometry.

Triangles

Number of triangular faces in the mesh.

Size

Bounding box dimensions in millimeters along X, Y and Z.

Volume

Solid volume of the closed mesh, from tetrahedral decomposition.

Surface area

Sum of all triangle areas (square centimeters).

Watertight

Whether every edge is shared by exactly two triangles. Open meshes may have holes or non-manifold edges.

Boundary edges

Edges that belong to only one triangle, indicating holes.

Non-manifold edges

Edges shared by more than two triangles, indicating non-manifold topology.

Mesh quality

Connected components

Number of independently connected mesh parts.

Isolated vertices

Vertices not referenced by any face.

Normals

Whether vertex normals are fully present (affects lighting).

Avg. edge length

Mean length of all triangle edges in millimeters.

Triangle quality

Mean triangle shape quality; equilateral = 100%, skinny triangles score lower.

Materials & textures

Materials

Number of materials assigned to the model.

Textures

Number of texture images embedded or referenced.

Resolutions

Pixel size and format of each texture slot.

GPU memory

Estimated VRAM used by textures including mipmaps.

Animation

Clips

Number of animation clips stored in the file.

Bones

Number of skeleton bones used for rigging and skinning.

Format Information

Input format

Extension:: Model
Full Name:: 3D Model
Type:: 3D Model
Format:: Various 3D Formats
Tools:: Three.js、Babylon.js
Open With:: Windows 3D Viewer、Blender
Description:: Supports many 3D formats (GLB, GLTF, OBJ, FBX, STL, etc.). Drag and drop to view.

Notes:

Supports 20+ 3D model formats
Associate texture files (MTL, images) can be uploaded alongside the main model
All processing is local, so files never leave your browser

Supported Features:

Real-time GPU-accelerated rendering via WebGL
Orbit controls: rotate, pan, zoom
Wireframe and shaded display modes
Model info panel with vertex/face counts
Animation playback for animated formats

How to Use

Upload a model

Drop STL, GLB, OBJ, FBX and other formats

Review the analysis panel

Expand each section to view metrics

Copy or preview animation as needed

Copy the report, or click animation clips to play a preview

Frequently Asked Questions

View all FAQs

About this tool

What does watertight mean?

A watertight (manifold) mesh requires every edge to be shared by exactly two triangles: no holes or non-manifold edges. 3D printing and Boolean operations usually require watertight meshes.

Why might the dimensions be off?

When a file has no unit metadata, the tool assumes 1 unit = 1 mm. Large CAD models exported in meters will look enormous, so scale them before printing.

How does the tool handle models with animations?

The analysis panel shows the number of animation clips and plays all of them by default. You can also use the play or pause buttons to preview a single clip.

How do I copy the analysis report?

Click the copy button at the top-right of the analysis panel or next to the report title. The full report is copied to the clipboard so you can share or save it.

How can I check whether a model is ready for 3D printing?

Start with the watertight status: printing usually requires a mesh with no holes or non-manifold edges. Then verify dimensions and units (the tool treats 1 unit as 1 mm when metadata is missing), and use the volume to estimate material usage.

Why do face and vertex counts matter?

They affect file size, load time, and how demanding the mesh is for slicing or real-time rendering. The analyzer reports vertex count, face count, and an estimated memory footprint so you can spot overly dense meshes that may need decimation.

General questions

Is Any3D completely free?

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.

Are my files uploaded to your servers?

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.

Do I need to install software?

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.

Is there a file size limit?

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.