KSPLAT to PLY Converter Online
Convert KSPLAT Gaussian Splatting files to PLY for use in desktop tools and research pipelines.
Last updated Mar 2026
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What You Should Know
Why Convert KSPLAT to PLY?
KSPLAT is specifically optimized for the Three.js GaussianSplats3D library and is not natively supported by most other tools. If you have a scene in KSPLAT format and need to load it into a desktop tool, use it in a research pipeline, or share it with a collaborator who does not use Three.js, converting to PLY is the path to broad compatibility. PLY is the universal 3DGS format recognized by the official viewer, Blender add-ons, and virtually all desktop 3DGS tools.
What the PLY Output Contains
Whether the PLY output contains spherical harmonics depends on whether the KSPLAT source file contains SH. Most KSPLAT files do not include SH (because the default creation settings omit it), in which case the output PLY will have SH coefficients (f_rest_ fields) set to zero and the scene will render with flat base colors. KSPLAT files created with SH enabled will have that data written to the output PLY — at 16-bit or 8-bit precision depending on the original compression level.
KSPLAT's Sorted Chunk Layout and PLY Ordering
KSPLAT organizes Gaussians in sorted chunks for efficient rendering. When converting to PLY, the Gaussians are written in chunk order, which may differ from the original training output order. This does not affect rendering quality — Gaussian order is irrelevant for rendering — but it means the PLY is not identical to the original training output if you are comparing byte-by-byte. The resulting PLY is a Gaussian Splatting PLY (containing f_dc_*, scale_*, rot_* properties), not a mesh PLY. To learn more about the two types of PLY files, see /formats/ply-3dgs.
KSPLAT vs PLY
| Feature | KSPLAT | PLY |
|---|---|---|
| File Size | Small — ~35% of equivalent PLY | Large — uncompressed (~236 bytes/Gaussian) |
| Spherical Harmonics | Optional — included only if enabled when creating the file (default is no SH) | Yes — full SH up to degree 3 |
| Web Compatibility | Good — Three.js GaussianSplats3D ecosystem | Limited — size makes direct delivery impractical |
| Compression | Good — quantized with optional chunks | None — raw parameter storage |
| Progressive Loading | Yes — streaming-optimized | No |
| Typical Use | Three.js integration, large scene streaming | Research, desktop editing, source of truth |