GIS
STREAM is desktop GIS and mapping software for terrain, brought into one fast app. Layer georeferenced DEMs, orthophotos, point clouds and vectors in true position, analyze the surface, and export results to the formats your GIS and CAD tools expect — all offline.
A GIS ties spatial data to real-world coordinates so you can view, measure and analyze it together. STREAM applies that to elevation and imagery: it reads each layer's coordinate reference system, stacks DEMs, orthophotos and vectors correctly, and derives new information from the surface.
It isn't a general-purpose GIS for every dataset — it's a terrain-first GIS that turns elevation into slope, flow, visibility, volumes and clean vector output.
Load DEMs, orthophotos, point clouds and DXF and STREAM aligns them by their CRS — no manual placement.
Slope, aspect, viewshed, line-of-sight, hydrology, contours and sun & shadow, shown as live overlays.
Draw points, lines and areas on the terrain, organize them in layers, and triangulate surfaces.
Export analysis as GeoTIFF rasters and vectors as DXF/CSV, with georeferencing preserved.
View ▸ Basemap downloads an online map of the project area — OpenTopoMap or your own XYZ service — or its elevation model from Copernicus GLO-30/90 or AWS Terrarium, and with your own OpenTopography key ALOS, NASADEM and SRTM. It is placed in the project coordinate system, the elevation model comes in as terrain, and the source attribution is printed on the sheet and in reports.
Load DEMs, orthophotos and point clouds straight from GeoTIFF and LAS/LAZ — the formats your GIS already produces.
The CRS is read from each file and shown for confirmation, so the data lands where your GIS expects it.
Volumes, cross-sections, contours, slope, hydrology and viewshed run at full raster resolution on the desktop, with no upload step.
Analysis rasters go back as GeoTIFF and vectors as DXF or CSV, with georeferencing preserved.
The source files are never modified — STREAM references them and keeps its own fast cache, so the same data stays usable in both tools.
STREAM is a terrain-focused desktop GIS: it reads georeferenced DEMs, orthophotos and vectors, runs terrain analysis on them, and exports GIS-ready GeoTIFF and DXF — offline.
Yes. STREAM reads each layer's CRS so data aligns correctly, and preserves georeferencing on export.
Slope, aspect, viewshed, line-of-sight, hydrology, contours, sun & shadow and change detection — plus volumes and cross-sections.
For terrain mapping, yes: it lays DEMs, orthophotos, point clouds and vectors on the same ground, draws contour and analysis maps, and prints a map sheet to PDF at a fixed scale. It is not a web map or a general cartography package.
Yes. Import a DXF and export its points, lines and areas as Shapefiles — one file per geometry type, with a .prj whenever the coordinate system resolves to an EPSG code — or as KMZ for Google Earth. Very large DXF layers load read-only; make them editable first. Shapefile, GeoJSON and GeoPackage also come in the other way.
Surveyors, civil engineers and mining and quarry teams — people whose question is about the ground: volumes, slopes, drainage, visibility and sections, rather than parcels or census data.
Windows 10 or Windows 11 (64-bit) and a graphics card that supports Vulkan 1.3 — this is required; without it the application will not start. 8 GB of RAM is recommended; the installation takes about 150 MB, plus cache space for the data you open. There is no fixed minimum for video memory: streaming budgets adapt to the card.
Free beta for Windows x64. Works fully offline with GeoTIFF, LAS/LAZ and DXF.
Download STREAM free