Observed arrival · 2026-08-22
TopoAssist Turns Survey Points Into Surfaces, Contours, and CAD
A browser-based survey utility that imports field data and exports contours, TIN surfaces, DXF, GIS files, LandXML, and vector print sheets.
Why it surfaced
TopoAssist handles a surprisingly complete chain of survey work: it projects WGS84 coordinates, repairs TINs, labels contours, styles point descriptions, and prepares Civil 3D and CAD exports. The site also states that imported files never leave the browser, with interactive processing for up to 5,000 points and DXF-only support for as many as 100,000.
A browser-based survey utility that imports field data and exports contours, TIN surfaces, DXF, GIS files, LandXML, and vector print sheets.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue