Observed arrival · 2026-11-11

Terrainly puts GeoTIFF terrain on a map—without uploading it

terrainly.app Visit website

Editorial interest 83/100 Selection signal · not a rating of the site

A browser-based viewer for DEM and GeoTIFF elevation files, with terrain shading, height readouts, slope maps, contours, and cut-and-fill estimates.

Landing page captured for the 2026-11-11 issue.

For: GIS users and people planning earthworks
Worth noticing: The homepage says oversized rasters are read in pieces and tested on 108 million cells; soil-volume results are labeled planning estimates, not a survey.

Field notes

The page demonstrates shaded, color, hillshade, and custom terrain views using lidar from Gatineau Park, and links to guides for opening GeoTIFFs, understanding DEMs, finding free elevation data, and troubleshooting files. A separate earthwork workflow offers estimates in metric or feet, including truck loads and an optional price per load. The site labels these figures as planning estimates rather than survey results.

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Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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