View GeoTIFF files in your browser
The TIFF that knows where on the earth it is: aerial photos, satellite scenes, elevation and land cover. Open one right here, in its place over OpenStreetMap. The file never leaves your device.
Or drop it anywhere on this page
What you'll see
Your GeoTIFF opens in its place on the map, over OpenStreetMap, read a tile at a time from the copy that fits.
- In its place • Through the projection it names
- Heights colored and shaded • Other numbers on a ramp
- Inspect • The value under the cursor
- Export • The view as PNG
About GeoTIFF
Niles Ritter of NASA's Jet Propulsion Laboratory and Mike Ruth of SPOT Image wrote GeoTIFF 1.0 in 1995, and the Open Geospatial Consortium made it a standard in 2019. The Cloud Optimized GeoTIFF, a COG, came from GDAL's and Planet's people around 2017, so a web page can read only the tiles it needs, and became an OGC standard in 2023.
A GeoTIFF is a TIFF with GeoKeys: tags that tie its pixels to the earth, by tie points and a pixel size or a whole transformation, and name its system, most often by an EPSG code. Its pixels can be a picture in color or numbers of any kind, heights, temperatures or an index. A COG keeps them in tiles with smaller copies, its first page up front.
Filepeek reads the GeoKeys and lays the file in its place on the map through its projection, reading only the tiles of the copy that fits the zoom. A picture shows as it is, heights are colored and shaded, and other numbers get a color ramp with its legend. Inspect gives the value under the cursor, Show details its size, bands and system, and Export saves the view as PNG.
GeoTIFF and Cloud Optimized GeoTIFF
.tif • .tiff
Format
- MIME type
- image/tiff
- Made by
- Niles Ritter of NASA's JPL and Mike Ruth of SPOT Image, now the OGC
- Released
- 1995
Inside the file
- Holds
- A picture or a grid of numbers
- Placed by
- GeoKeys and tie points
- Systems
- EPSG codes or its own projection
- A COG
- Tiles with smaller copies
Opens in every browser
Filepeek opens GeoTIFFs on a map in Chrome, Edge, Firefox and Safari. On their own, Chrome, Edge and Firefox download them, and Safari shows a picture with no place.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open GeoTIFF
- WindowsQGIS • ArcGIS Pro • Global Mapper
- MacQGIS
- iPhone and iPadQField • Avenza Maps
- AndroidQField • Avenza Maps
Questions
How do I open a GeoTIFF?
Drop it on this page or choose Peek a GeoTIFF. It opens in its place on the map, over OpenStreetMap.
Does it open huge GeoTIFFs?
Yes. From a COG, or any tiled GeoTIFF with smaller copies, Filepeek reads only the tiles the map shows. A GeoTIFF without smaller copies gets one made as it opens, which takes a moment on a big file.
Which projections does it read?
UTM in every zone, Web Mercator and the national grids GIS tools use most, like British National Grid, Lambert-93 and the Swiss grids, by their EPSG codes, and any projection a file spells out in its GeoKeys. A file in a system Filepeek doesn’t know says so.
How are elevation GeoTIFFs shown?
When the numbers are heights, Filepeek colors them from low to high and shades them with light from the northwest. Inspect gives the height under the cursor, and Measure draws the profile along a line.
What if it doesn’t go on the map?
A GeoTIFF whose system Filepeek doesn’t know, or whose place doesn’t add up, opens in the image viewer as the TIFF it is.