Convert 3DGS without uploading the scene
The source scene is read and converted in the current browser session. Sign-in is only requested when downloading the completed result.
Local Gaussian Splatting Converter
Convert Gaussian Splatting files in your browser
6
Inputs
10
Outputs
0–3
SH
0–99%
Pruning
Live
Estimate
Direct
Download
Source file
Input format is detected automatically.
Drop a file here or browse
PLY, SOG, KSplat, Splat, SPZ, or glTF
Detected input
Upload a file to detect its format
Output format
Choose the converted file type.
Gaussian Splat format comparison
Compare output size before converting
The graph uses a one-million-splat SH3 reference scene. It updates with the selected SH degree and pruning percentage.
SOG, SPZ, gzip, decimal length, and codebook efficiency depend on scene entropy. Values are planning estimates; the selected output changes to its exact Blob size after conversion.
Estimated output size
Smallest to largest
1,000,000 reference splatsReduction vs INRIA PLY reference
01
SOGSOGSelected
15.3 MB
93.2% reduction
02
SPZSPZ
25.8 MB
88.6% reduction
03
PLY·CCompressed PLY
26.7 MB
88.1% reduction
04
SPLSplat
30.5 MB
86.4% reduction
05
HTMLHTML
34.4 MB
84.7% reduction
06
PTSPLY (Pointcloud)
38.1 MB
83.1% reduction
07
KSPKSplat
68.7 MB
69.5% reduction
08
PLYPLY
225 MB
0.0% reduction
09
glTFglTF
301 MB
33.9% larger
10
CSVCSV
620 MB
175.4% larger
Local 3DGS converter
Convert Gaussian Splatting files locally in your browser
Use Splatware as an in-browser Gaussian Splatting converter to convert 3DGS files between INRIA PLY, SOG, KSplat, Splat, SPZ, compressed PLY, point-cloud PLY, glTF, HTML, and CSV. File parsing, pruning, spherical-harmonics changes, and output generation run locally in the browser.
convert Gaussian splatting files3DGS converterconvert 3DGSGaussian splatting converterlocal converterin-browser conversion
Convert Gaussian Splat formats
Move between training-oriented PLY, compact delivery formats such as SOG and SPZ, viewer formats such as KSplat and Splat, and portable HTML or glTF exports.
Reduce 3DGS file size with pruning
Remove lower-importance Gaussians, choose SH0–SH3, and compare estimated output sizes before starting the conversion.
Convert Gaussian Splatting to mesh?
This page converts Gaussian Splat file formats; it does not reconstruct a polygon mesh. Mesh conversion requires a separate surface-reconstruction or meshing workflow.
Local
Browser-side scene processing
10
Gaussian Splat output formats
SH0–SH3
Directional color control
Usage and compatibility
Which formats are actually used and supported?
Gaussian Splatting still has no central format telemetry. The percentages below are an editorial ecosystem estimate based on public capture-app defaults, converter support, viewer imports, repositories, and engine integrations as of June 2026—not measured user analytics.
Estimated ecosystem distribution
INRIA PLY remains the default
70%
INRIA PLY
INRIA 3DGS PLY70.0%
SPZ9.5%
Splat7.0%
SOG5.5%
Compressed PLY4.0%
KSplat2.5%
HTML0.7%
PLY (point cloud)0.6%
glTF0.1%
CSV0.1%
Treat these percentages as a directional adoption model. Public evidence strongly supports the ordering—especially PLY first—but no standards body publishes audited market share by splat extension.
Engine and creative-tool support
Native support is still the exception
“PLY supported” only counts when the application understands the Gaussian attributes and renders splats. Importing the same file as ordinary vertices is only a point-cloud fallback.
GaussianSplats3D
Three.js library
NativeINRIA PLY · Compressed PLY · SPLAT · KSplat · SPZ
One of the broadest browser-runtime format sets, but it is a library rather than Three.js core.
GaussianSplats3D repository ↗
CesiumJS
Geospatial web engine
Official integrationKHR_gaussian_splatting glTF inside 3D Tiles
Official experimental Gaussian support targets tiled geospatial delivery rather than loose PLY files.
Cesium Gaussian extension update ↗
PlayCanvas Engine
Web engine
NativeINRIA PLY · Compressed PLY · SOG
Official GSplat assets support these formats directly, with SOG recommended for runtime delivery.
PlayCanvas GSplat documentation ↗
Unity
Game engine
Community add-onINRIA PLY · SPZ
Unity does not ship a native Gaussian importer; the widely used community package by Aras Pranckevičius supports original 3DGS PLY and SPZ.
UnityGaussianSplatting repository ↗
Unreal Engine 5
Game engine
Official + pluginsKHR glTF / 3D Tiles via Cesium · INRIA PLY via plugins
Cesium for Unreal supports tiled KHR_gaussian_splatting content, while direct loose-file workflows still depend mostly on third-party PLY plugins.
Cesium for Unreal releases ↗
Blender
DCC
Community add-onINRIA PLY
Blender can import generic PLY geometry natively, but correct Gaussian rendering requires an add-on such as KIRI Engine's 3DGS Render.
KIRI 3DGS Render add-on ↗
OctaneRender
Renderer
NativeINRIA PLY
Octane includes a documented Gaussian Splat geometry node and directly renders Gaussian PLY files.
OTOY Gaussian Splat documentation ↗
Maya
DCC
No direct supportNone
No native Gaussian Splat renderer or importer is documented. A generic point-cloud or converted mesh is not equivalent to the INRIA Gaussian representation.
Autodesk Maya documentation ↗
DaVinci Resolve / Fusion
Compositing
No direct supportNone
Current Fusion workflows operate on conventional 3D geometry, images, and rendered passes; Gaussian scene files need to be rendered elsewhere first.
Blackmagic Fusion visual-effects guide ↗
After Effects
Compositing
No direct supportNone
After Effects imports conventional GLTF/GLB, OBJ, and FBX models, but does not render KHR_gaussian_splatting or Gaussian PLY as splats.
Adobe 3D model import documentation ↗Format encyclopedia
A deep dive into every Gaussian Splat output
File extensions are not interchangeable quality presets. “INRIA 3DGS PLY” below means the specialized Gaussian checkpoint schema from the 2023 paper; “PLY (point cloud)” means the older generic Stanford geometry format.
SOG.sog
SOG
- Created by
- PlayCanvas ecosystem
- Introduced
- Public design in 2025
- Best for
- Small web delivery and streaming
Spatially Ordered Gaussians combine spatial ordering, quantization, compact image-backed streams, and codebooks. It is the most size-focused full-scene output in this converter.
PlayCanvas SOG specification ↗SPZ.spz
SPZ
- Created by
- Niantic Labs / Scaniverse
- Introduced
- 2024
- Best for
- Compact exchange with strong visual fidelity
SPZ packs positions, opacity, scale, rotation, color, and spherical harmonics into quantized streams and compresses the result. It is designed as a practical compressed interchange format.
Niantic SPZ repository ↗PLY·C.ply
Compressed PLY
- Created by
- PlayCanvas / SuperSplat ecosystem
- Introduced
- 2023–2024
- Best for
- Compact PLY-compatible workflows
Compressed PLY keeps the familiar PLY container while packing Gaussian attributes more tightly. It is useful where PLY tooling matters more than maximum compression.
SuperSplat repository ↗SPL.splat
Splat
- Created by
- Kevin Kwok (antimatter15)
- Introduced
- 2023
- Best for
- Simple, fast viewer loading
The classic .splat layout uses a fixed 32-byte record per Gaussian. It is extremely easy to parse and render, but it does not carry higher-order spherical harmonics.
Original web splat viewer ↗HTML.html
HTML
- Created by
- Splatware
- Introduced
- 2026
- Best for
- A shareable, single-file viewer
The HTML export embeds an SPZ scene directly into a clean Spark viewer. The scene travels as one file, while Three.js and Spark are loaded when the page opens.
Splatware ↗PTS.ply
PLY (point cloud)
- Created by
- Greg Turk and the Stanford Graphics Laboratory
- Introduced
- 1994
- Best for
- Point-cloud inspection and conventional PLY software
This is the classic Stanford PLY lineage: vertices and color intended for ordinary point-cloud or mesh tooling. It does not contain the full opacity, covariance, rotation, and spherical-harmonic fields required to reproduce a Gaussian Splat.
Original Stanford PLY description ↗KSP.ksplat
KSplat
- Created by
- Mark Kellogg / GaussianSplats3D
- Introduced
- 2023; SH update in 2024
- Best for
- GaussianSplats3D viewer pipelines
KSplat uses spatial buckets and quantized attributes for efficient browser loading. Later revisions added first- and second-degree spherical harmonics and an additional SH compression level.
GaussianSplats3D repository ↗PLY.ply
INRIA 3DGS PLY
- Created by
- Bernhard Kerbl, Georgios Kopanas, Thomas Leimkühler, and George Drettakis
- Introduced
- SIGGRAPH 2023 · ACM Transactions on Graphics 42(4)
- Best for
- Training checkpoints, editing, archival, and full-fidelity interchange
This is not an ordinary point-cloud PLY. The original INRIA 3D Gaussian Splatting implementation uses custom vertex properties for position, DC and higher-order spherical harmonics, opacity logits, logarithmic scales, and quaternion rotation. It became the de facto source format for the 3DGS ecosystem.
Official INRIA 3DGS paper and project ↗glTF.gltf
glTF
- Created by
- Khronos Group contributors
- Introduced
- Release Candidate in 2026
- Best for
- Standards-based 3D asset pipelines
KHR_gaussian_splatting stores Gaussian attributes on a glTF POINTS primitive and provides a colored point-cloud fallback. Support is emerging, and self-contained base64 glTF is comparatively large.
Khronos extension specification ↗CSV.csv
CSV
- Created by
- Long-standing tabular convention; RFC by Yakov Shafranovich
- Introduced
- RFC 4180 published in 2005
- Best for
- Analysis, debugging, and spreadsheets
CSV exposes every selected Gaussian attribute as readable decimal text. It is universal and inspectable, but repeated decimal strings make it the least space-efficient output.
RFC 4180 ↗Which input formats are detected automatically?
PLY, SOG, KSplat, Splat, and SPZ are detected from the uploaded extension. glTF input remains disabled until a matching parser is connected.
What does pruning change?
Pruning scores existing Gaussians using opacity, scale, neighborhood density, local color contrast, and SH energy. It removes the lowest-scoring percentage without merging or enlarging the retained splats.
Why can actual size differ from the graph?
Binary record formats are predictable, while SOG, SPZ, HTML, and CSV depend on entropy, gzip effectiveness, numeric magnitude, and decimal string length. After conversion, the tracker reports the exact generated Blob size.
What does the SH degree change?
SH0 stores diffuse color only. SH1–SH3 retain progressively more view-dependent appearance, increasing file size. KSplat is capped at SH2 by its supported layout.
Is this a local or in-browser 3DGS converter?
Yes. Gaussian Splat parsing, pruning, SH processing, and output generation run in the browser. The scene is not uploaded to a conversion server; account authentication is only used to unlock the completed download.
How do I convert Gaussian Splatting files?
Upload a supported 3DGS file, choose an output format, select the SH degree and optional pruning percentage, run the conversion, then download the generated result.
Can this convert Gaussian Splatting to a mesh?
No. This converter changes Gaussian Splat file formats and can export a point-cloud PLY fallback, but it does not reconstruct polygon surfaces. Gaussian-to-mesh conversion needs a separate meshing or surface-reconstruction pipeline.