Stream and inspect massive 3D Tiles datasets, city models, photogrammetry, and BIM with high-performance HLOD rendering.
or click to browse, paste supported
No file on hand? Load a ready-made 3D Tiles scene to explore the viewer.
This is a free online 3D Tiles viewer supporting both local file/ZIP uploads and remote URL streaming. Large datasets stream smoothly with high-performance Hierarchical Level of Detail (HLOD) rendering directly in your browser. GIS coordinates are automatically normalized to center the model in your viewport, and all processing runs locally on your device.
Where is your tileset?
A folder on your computer
Put the whole folder, with tileset.json and all tile files, into one ZIP and upload it.
Already a ZIP
Upload it as it is; keep tileset.json inside.
On a web server
Paste the full URL of tileset.json. The server must allow cross-origin requests from other sites.
Only a single .b3dm or .glb tile
Open the .glb in a regular 3D viewer; one tile on its own is not a full tileset.
3D Tiles is an open OGC standard designed by Cesium for streaming and rendering massive heterogeneous 3D geospatial and geometric datasets over the web. Using Hierarchical Level of Detail (HLOD) and spatial bounding volume trees, it dynamically streams only the tiles visible in the current viewport, enabling smooth real-time rendering for photogrammetry, urban models, BIM, and point clouds.
You can compress the entire folder containing tileset.json and its associated tile files into a single .zip archive and upload it, or select all files directly in the file picker. If your dataset is hosted online, paste the public HTTP/HTTPS URL of your tileset.json into the URL field in the upload zone and click load to explore it immediately in your browser.
3D Tiles was originally created by Cesium and is now an open OGC community standard that is independent of any specific engine. Cesium ion is a commercial cloud hosting platform and CesiumJS is a WebGL engine, while this tool is a completely free, standalone browser viewer that requires no software installation or user account.
You can load the built-in sample scenes directly below the upload area to stream real CesiumGS tilesets such as LOD buildings, photogrammetry trees, and point clouds. For downloadable datasets, visit the official CesiumGS/3d-tiles-samples repository on GitHub, OpenStreetMap 3D Buildings, or open municipal GIS portals.
A 3D Tiles dataset uses a JSON index file named tileset.json to define spatial hierarchy and bounding volumes. Actual geometric and attribute data are stored in tile payload formats including Batched 3D Model (.b3dm), Point Cloud (.pnts), Instanced 3D Model (.i3dm), Composite (.cmpt), and native glTF/GLB content in 3D Tiles 1.1.
Unlike monolithic 3D model formats that must be fully downloaded and decoded before display, 3D Tiles partitions massive geospatial scenes and drone photogrammetry meshes into a hierarchical LOD spatial tree. The browser requests high-resolution geometry only for areas near the camera, drastically reducing memory usage while delivering smooth streaming across city-scale 3D environments.
Yes, the viewer works on modern mobile browsers with WebGL support. However, because high-resolution photogrammetry and dense point cloud datasets require substantial GPU memory and download bandwidth, desktop computers with dedicated graphics cards are recommended for smooth navigation across multi-gigabyte city-scale datasets.
| Option | What it does | Default / range |
|---|---|---|
Auto-rotate | Slowly rotate the tileset around the vertical axis for a complete view. on · off | off |
| Option | What it does | Default / range |
|---|---|---|
Max Screen Space Error (SSE) | Adjust the pixel error threshold for tile subdivision. Lower values load finer details sooner, while higher values improve performance. | 6px1px – 30px |
Max Tree Depth | Limits the maximum hierarchy depth when traversing the spatial tile tree. | 301 – 40 |
| Option | What it does | Default / range |
|---|---|---|
Color Mode | Switch between default material rendering and various debug shading modes such as Screen Space Error, Geometric Error, Camera Distance, Depth, Leaf nodes, or Random Colors. Default (Material) · Screen Space Error · Geometric Error · Camera Distance · Tile Depth · Relative Depth · Leaf Nodes · Random Color | Default (Material) |
Bounding Boxes | Toggle oriented bounding box (OBB) and axis-aligned bounding box (AABB) wireframe outlines for visible tiles.
| Off |
Sphere Bounds | Toggle bounding sphere wireframe outlines for visible tiles.
| Off |
| Problem | Likely cause | What to do |
|---|---|---|
| The URL fails to load | The server blocks requests from other websites (CORS) | Enable cross-origin access on the server, or download the tileset and upload it as a ZIP. |
| Loading is slow or the page stutters | Too many detailed tiles are requested at once | Raise Max Screen Space Error or lower Max Tree Depth. |
| Detail stays blurry up close | Max Screen Space Error is set high | Lower it so finer tiles load sooner. |
| The ZIP opens but nothing appears | tileset.json is missing or tile paths do not match | Zip the folder again without moving or renaming tile files. |
