Comparison · Free and open-source tools
Neurones 3D vs QGIS
Looking for a QGIS alternative? Neurones 3D is free, offline point cloud and Gaussian splatting software for Windows: the free viewer runs every process, from AI classification to dimensioned floor plans, and a one-time paid edition saves the results.
QGIS is the free, open-source desktop GIS. It displays LAS/LAZ, COPC and EPT point clouds in 2D and 3D, draws elevation profiles, runs PDAL-based point cloud algorithms and, since 3.44, lets you edit point attributes by hand in 3D views.
By Dr. Florent Poux, maker of Neurones 3D · QGIS's facts from QGIS project (open source)'s own documentation, checked
The short answer
Choose Neurones 3D if you need to turn raw point clouds into results: automatic classification with trained models, a ground filter, DTM and contours, M3C2 change detection, meshes and dimensioned plans, in one offline Windows application with a free viewer. Choose QGIS if you mainly need to see point clouds beside the rest of your GIS data, make maps and profiles, and run PDAL-based conversions, free and on any operating system.
At a glance
| Neurones 3D | QGIS | |
|---|---|---|
| Runs on | Windows 10 and 11 (64-bit) | Windows, macOS, Linux, Android and iOS |
| Where it runs | desktop | desktop |
| Licence | free viewer + one-time paid editions | free and open source (GNU General Public License) |
| Price | Free viewer; paid editions bought once, no subscription | Free source |
| Free use | The free viewer opens, views and runs every process; writing results out needs a paid edition | Entirely free |
Feature by feature
"Not stated" means we could not find it in QGIS project (open source)'s documentation, not that it is missing. Each of QGIS's cells links to where we read it.
| Capability | Neurones 3D | QGIS |
|---|---|---|
| Runs fully offline | YesNo account, no internet connection, no telemetry | YesInstalled desktop application, free download, no account source |
| One-time licence available | YesBought once; no subscription | YesFree of charge under the GNU GPL; no licence to buy source |
| Opens LAS/LAZ and E57 | YesLAS, LAZ, COPC, E57, PLY, PCD and more; a 127.8 M point E57 opens in about 22 s | PartlyLAS/LAZ, COPC and EPT; E57 is not listed source |
| Scan registration | PartlyCloud-to-cloud alignment (ICP and graph matching, no initial placement needed), RMS shown with the inlier share | Not stated |
| AI point cloud classification | YesFour trained models ship in every build: indoor, aerial LiDAR, powerline, streetscape; a confidence per point | Not statedClasses are displayed and, since 3.44, edited by hand; no automatic classifier is listed among the point cloud algorithms |
| Segmentation | YesUnsupervised segmentation, primitive decomposition, components, rooms | Not stated |
| Automatic floor plans | YesAutomatic, dimensioned, with sections and elevations | Not stated |
| DXF / CAD drawings | YesDXF R2000, SVG and PDF; no DWG | YesVector layers export to AutoCAD DXF source |
| DTM / DSM | YesDTM, DSM, CHM, slope, aspect, hillshade on one grid | YesExport to raster, including by triangulation source |
| Contour lines | YesContours that cannot cross | YesGDAL Contour extracts contour lines from an elevation raster source |
| Change detection | YesM3C2 with a 95 % level of detection; cloud-to-cloud and cloud-to-BIM deviation | Not stated |
| Meshing | YesPoisson and clean meshing; the clean mesh is closed, not edge-manifold | Not stated |
| Gaussian splats | YesOpens PLY and SPZ splats, converts them to points, meshes them; does not train splats | Not stated |
| Reports | YesSelf-contained HTML reports with provenance | Not stated |
| Scripting / SDK | YesEngine & SDK edition: Python package and headless command line | YesProcessing algorithms expose Python code; PyQGIS source |
Where Neurones 3D is stronger
- Classifies point clouds automatically with four trained models and a confidence per point; QGIS displays classes and, since 3.44, lets you edit them by hand.
- Ground filtering, DTM, DSM, CHM and contours in one step from the raw cloud; QGIS’s point cloud algorithms cover conversion, clipping, thinning, merging, filtering and rasterising.
- Opens E57 as well as LAS, LAZ and COPC; QGIS lists LAS/LAZ, COPC and EPT.
Where QGIS is stronger
- Free and open source, on Windows, macOS, Linux, Android and iOS.
- A complete GIS: vector editing, raster analysis, print layouts and hundreds of formats, plus a large plug-in ecosystem.
- Point clouds sit beside all your other GIS layers, with elevation profiles, virtual point clouds and COPC output.
Who should choose which
Choose Neurones 3D to take a point cloud or a splat capture to a finished deliverable on your own machine: classified LAS, a dimensioned floor plan with sections and elevations in DXF, a DTM with contours, a change map or a report, without an account, an upload or a subscription. Every figure it publishes is measured; see the benchmarks.
Choose QGIS: GIS users who want point clouds beside their vector and raster layers, at no cost, on any operating system.
Questions
Is QGIS free?
QGIS: Free. Free use: Entirely free. Neurones 3D’s free viewer opens, views and runs every process; writing results out needs a paid edition bought once.
Does QGIS work offline?
QGIS: yes. Installed desktop application, free download, no account. Neurones 3D: yes. No account, no internet connection, no telemetry.
What is the best alternative to QGIS?
Choose Neurones 3D if you need to turn raw point clouds into results: automatic classification with trained models, a ground filter, DTM and contours, M3C2 change detection, meshes and dimensioned plans, in one offline Windows application with a free viewer. Choose QGIS if you mainly need to see point clouds beside the rest of your GIS data, make maps and profiles, and run PDAL-based conversions, free and on any operating system.
How this comparison was made
Written by the maker of Neurones 3D, so read it as such. QGIS's column comes only from QGIS project (open source)'s published documentation and listings, read on 2026-09-24; where we found nothing, the cell says "not stated". Neurones 3D's column comes from its own guides, which give the limits too. If something here is wrong or out of date, write to howto@learngeodata.eu and it will be corrected.
Sources:
- qgis.org/download/
- docs.qgis.org/latest/en/docs/user_manual/working_with_point_clouds/point_clouds.html
- docs.qgis.org/latest/en/docs/user_manual/processing_algs/qgis/pointcloudconversion.html
- docs.qgis.org/latest/en/docs/user_manual/processing_algs/qgis/pointcloudextraction.html
- docs.qgis.org/latest/en/docs/user_manual/processing_algs/qgis/pointclouddatamanagement.html
- docs.qgis.org/latest/en/docs/user_manual/processing_algs/gdal/rasterextraction.html
- docs.qgis.org/latest/en/docs/user_manual/managing_data_source/create_layers.html
- changelog.qgis.org/en/version/3.44/