Free Online 3D Model Viewer

View, inspect, and analyze 3D files instantly in your browser. Supports STL, OBJ, GLB, GLTF, and PLY formats — no software to install, no files uploaded. 100% private and free.

STL Viewer Online

Open and preview STL files from Thingiverse, Printables, Cura, PrusaSlicer, or any CAD software. See vertex count, triangle count, and model dimensions before you print. No signup required.

OBJ File Viewer

View OBJ files exported from Blender, Maya, ZBrush, or Fusion 360. Inspect mesh geometry, toggle wireframe mode, and check dimensions — all in your browser.

GLB / GLTF Viewer

Preview GLB and GLTF files used for web 3D, AR experiences, and game engines. Verify your models look correct before deploying to websites or AR Quick Look.

PLY Viewer

View PLY files from 3D scanners, photogrammetry software like Meshroom or RealityCapture, and point cloud tools. Supports vertex colors.

Features

Geometry Info — Vertex count, triangle count, mesh count, normals, UVs, and vertex colors.

Dimensions — Bounding box size in mm with X/Y/Z breakdown, estimated volume and surface area.

Wireframe Mode — Toggle wireframe overlay to inspect mesh topology and edge flow.

Bounding Box — Visualize the axis-aligned bounding box around your model.

Grid & Axes — Toggle reference grid and X/Y/Z axes for spatial orientation.

Screenshot — Save a PNG image of your model from any angle with one click.

Custom Colors — Change model color and background color on the fly.

100% Private — Everything runs in your browser. No files are uploaded to any server.

Common Use Cases

Preview Before 3D Printing

Quickly check STL or OBJ files before importing them into your slicer. Verify dimensions, look for mesh errors, and confirm the model is what you expect — all without opening Cura or PrusaSlicer.

Inspect Downloaded Models

Downloaded a model from Thingiverse, Printables, MyMiniFactory, or Thangs? Open it here to check the geometry, triangle count, and size before committing to a print.

Verify AI-Generated 3D Models

Generated a 3D model with an AI tool? Drop the output file here to inspect the mesh quality, vertex count, and dimensions before printing or publishing.

Web & AR Development

Preview GLB and GLTF files before deploying them to your website, Three.js app, or AR Quick Look experience. Verify the scene looks correct without spinning up a dev server.

3D Scan Inspection

View PLY files from photogrammetry and 3D scanning workflows. Check mesh density, vertex colors, and dimensions before post-processing in Blender or Meshmixer.

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