PLY vs GLB
PLY is a raw data format for scans: vertices, faces, per-vertex colour and point clouds. GLB is a delivery format for displaying models with materials and textures. Converting a coloured PLY scan to GLB makes it easy to share in a browser or AR, while keeping the PLY is better if you'll process the scan further.
Side by side
| PLY | GLB | |
|---|---|---|
| Full name | Polygon File Format | binary glTF |
| Created by | Stanford University | Khronos Group |
| Introduced | 1994 | 2017 (glTF 2.0) |
| Encoding | binary or ASCII | binary, one file |
| File size | compact in binary | small; textures stored compressed |
| Materials | No | Yes |
| Textures | No | Yes |
| Animation | No | Yes |
| Colour | per-vertex colour | PBR materials and embedded textures |
| Units | unitless | metres by convention |
| Best for | 3D scans, point clouds and research tools like MeshLab and CloudCompare | the web, Godot, three.js, Android AR and general sharing |
Choose PLY when
- •You're still cleaning or processing the scan.
- •You need point clouds or per-vertex data.
- •Your scanning or research tools expect PLY.
Choose GLB when
- •You want to share or embed the scan on the web.
- •You want the model to open in AR or a game engine.
- •You need a compact single file for delivery.
Which apps open them
Of the 15 3D apps in our software guides, 4 open PLY without conversion and 9 open GLB. Only GLB opens directly in Unity, Unreal Engine, Godot, Roblox Studio, Shopify.
Questions
- Is PLY better than GLB?
- Neither is better everywhere. You're still cleaning or processing the scan: choose PLY. You want to share or embed the scan on the web: choose GLB.
- Can I convert PLY to GLB?
- Yes. Our PLY to GLB converter runs in your browser. The shape and supported materials carry over.
- Which file is smaller, PLY or GLB?
- PLY: compact in binary. GLB: small; textures stored compressed. Actual size depends mostly on polygon count and texture resolution.
Written with AI assistance by the Renderlyst team in October 2026. Format support reflects each app's current release as we understand it, and we link the official documentation so you can confirm it for your version. Spotted something out of date? Email alishbakhalid766@gmail.com.