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Neurones 3D Download

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What do you need from the point cloud?

Neurones 3D is one offline Windows program for the whole job: open a scan or a splat capture, classify and segment it, and turn it into a floor plan, a DXF drawing, a terrain model, contours or a change map. The free viewer runs every process; a one-time paid edition saves the results. Pick the job below.

Download free for Windows Read the guides

Survey and topography

Ground, terrain, contours and change, for land surveyors and drone LiDAR.

Topographic mappingPoint cloud to topographic map and contour linesTurn a LiDAR point cloud into a topographic map offline: ground filter, DTM, hillshade and contour lines that cannot cross, as GeoTIFF and GeoJSON. LiDAR terrainLiDAR terrain products - DTM, DSM and canopy height from point cloudsBuild a DTM, DSM, canopy height, slope, hillshade and contours from LiDAR on one grid, as GeoTIFF, after a ground filter scoring F1 90.3 % against IGN. Point cloud change detectionPoint cloud change detection software, with M3C2 and a level of detectionNeurones 3D is point cloud change detection software: M3C2 with a per-point level of detection, cloud-to-cloud and cloud-to-BIM checks. Free and offline. AI point cloud classificationAI point cloud classification, with a confidence for every pointAI point cloud classification on your own PC: four trained models (indoor, aerial LiDAR, powerline, street), a confidence per point. Free to run.

Architecture, engineering and construction

From a building scan to drawings a client can sign.

Point cloud to floor planAutomatic point cloud to floor planTurn a point cloud from any scanner into a to-scale, dimensioned floor plan with sections and elevations, offline, saved as DXF, PDF and SVG. Point cloud to CADPoint cloud to CAD and DXF, from E57, LAS or PLYPoint cloud to CAD, offline, with Neurones 3D: E57, LAS or PLY to plans, sections and elevations as DXF R2000, SVG and PDF, drawn to ISO standards. Scan to BIMScan to BIM, the measured wayThe measured side of scan to BIM: floor plans, sections and elevations from point clouds, rooms with areas, and scan-versus-IFC deviation. Offline. Point cloud segmentationPoint cloud segmentation software: surfaces, primitives, objects and roomsNeurones 3D is point cloud segmentation software for Windows: parameter-free segmentation, primitive decomposition, objects and rooms. Free and offline.

Gaussian splatting

Splat captures treated as survey data, not only as pictures.

Gaussian splattingDesktop Gaussian splatting softwareFree desktop Gaussian splatting software: open PLY and SPZ splats, render them at 60 FPS, convert them to point clouds and mesh them to glTF, offline. Gaussian splatting to meshGaussian splatting to mesh, offline on your own PCConvert a Gaussian splat to a mesh offline with Neurones 3D: a three-level glTF chain for game engines, or splat to point cloud to a Poisson or clean mesh. Splats to deliverablesGaussian splat to floor plan, CAD and measurementsTake a Gaussian splat to a floor plan, CAD drawings and measurements with Neurones 3D, offline: convert to points, set scale, then draw DXF, SVG and PDF.

Getting started and choosing

What is free, what it is measured on, and how it compares: every tool side by side.

Free point cloud softwareFree point cloud software: a LAS, LAZ and E57 viewer that runs every processNeurones 3D is free point cloud software for Windows: open LAS, LAZ and E57 offline, then classify, segment and draw floor plans, with no account or trial. Point cloud processingPoint cloud processing software for WindowsFree, offline point cloud processing software for Windows: open LAS, LAZ, E57 and PLY, classify, segment, measure, and build floor plans and terrain. BenchmarksPoint cloud software benchmark: every number Neurones 3D publishesPoint cloud software benchmark for Neurones 3D: load times, classifier accuracy, ground filter F1 against IGN LiDAR HD and M3C2, each with its source. Buyer's guideThe best point cloud software in 2026, by jobThe best point cloud software for each job in 2026: viewing, registration, LiDAR classification, floor plans, contours and splats. By the maker of N3D. ComparisonNeurones 3D vs CloudCompare, a CloudCompare alternative for deliverablesNeurones 3D vs CloudCompare, checked 24 September 2026: where the free open-source tool is the better choice, and where N3D's automatic deliverables win. ComparisonAn Autodesk ReCap alternative you buy onceNeurones 3D vs Autodesk ReCap Pro, checked 24 September 2026: a one-time licence instead of a subscription, E57 and LAS opened directly, fully offline.

About

Why Neurones 3D exists.

Standing inside a 43.5 million point indoor laser scan rendered by Neurones 3D

I have spent years working with point clouds, and for most of them the software got in the way. I wanted one tool I would actually reach for every day: fast enough to enjoy, honest about what it does, and calm to use.

Neurones 3D started in Python, the way most of my research does. It worked, but it was heavy, and heavy tools quietly discourage you from opening them. So I rebuilt everything in Rust, from the file readers to the renderer, with one rule: stay frugal. A single small file, no cloud, no telemetry, billions of points on a laptop that is ten years old. In an age where every tool reaches for a data center, I wanted the opposite.

The goal is simple to say and hard to earn. One package that carries you from capture to understanding to deliverable, without exporting to five other programs along the way. Load a scan, a splat, a building, a phone video. See it, classify it, measure it, and send out something real. Together, in one place.

This is the tool I always wanted. I hope it becomes yours too.

Dr. Florent Poux 3D Geodata Academy

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