Geodocs Tools
GeoTIFF / COG Viewer
Drop a GeoTIFF or paste a URL and view it on an interactive map. Any CRS is reprojected automatically. 100% in your browser — files never leave your device.
Serve your rasters as COGs
Geodocs converts and serves your GeoTIFFs as Cloud Optimized GeoTIFFs automatically, with maps, reports, and dynamic forms for field teams.
Discover GeodocsA GeoTIFF is a TIFF image with embedded georeferencing — a coordinate system and the real-world position of every pixel — so it lines up with a map. A Cloud Optimized GeoTIFF (COG) is the same format laid out in internal tiles with overviews, so a viewer can stream only the part it needs over HTTP instead of downloading the whole file. This tool opens both and draws them on an interactive map.
Drop a .tif or paste a URL and the raster is reprojected from its native coordinate system (UTM, SIRGAS 2000, or anything proj4 knows) into web map coordinates automatically — no desktop GIS, no tiling server. A true COG streams instantly because only the tiles and overviews in view are fetched.
If a file is striped instead of internally tiled, the whole image has to be decoded at once, which is slow and memory-heavy for large rasters. The viewer detects this and warns you before rendering. To make large rasters fast everywhere, convert them to COGs — Geodocs does this automatically and serves them for you.
Yes. Everything runs in your browser. Local files are read on your device and never uploaded. For a URL, the tool fetches only the byte ranges it needs directly from the host. Nothing is sent to a Geodocs server.