WAVESPEED AI GIS VIEWER Files stay on your device

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Free Online GIS ViewerOpen it, measure it, convert it.

Open shapefiles, GeoJSON, KML, GPX, CSV and GeoPackage files on a map, right in your browser.
Browse the attribute table, style by value, measure, draw, and save to another format or coordinate system.

10 formats inReproject on exportNothing to install

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Open GeoJSON, KML, GPX, shapefiles and more

Drop files here, or choose them. For a shapefile, pick its .shp, .dbf and .prj together, or a .zip.

GeoJSON, TopoJSON, KML, KMZ, GPX, TCX, Shapefile, CSV, FlatGeobuf, GeoPackage

Or try an example

Your files are read in this browser tab and aren't sent anywhere.View, measure, style and convert map data

THREE SIMPLE STEPS

How to view a map file online

Open your files

Drop a GeoJSON, KML, KMZ, GPX, CSV, GeoPackage or FlatGeobuf file, or a shapefile's .shp, .dbf and .prj (or its .zip). Several files open as several layers.

Explore and measure

Click a feature to see its attributes, filter and sort the table, colour the map by a field, measure distances and areas, or draw new shapes.

Convert and download

Pick a layer, a format and a coordinate system, and download. Or save the map as a PNG image.

What you can do

Many formats, one map

Shapefiles (loose or zipped, with their code page), GeoJSON and GeoJSON lines, TopoJSON, KML and KMZ, GPX and TCX tracks, CSV with latitude/longitude or WKT, FlatGeobuf, GeoPackage and Esri JSON.

Coordinate systems handled

Projected data is placed correctly from its .prj, EPSG code or GeoPackage definition, with datum shifts. If a file doesn't say, you pick the system from 700+ EPSG entries.

Attribute table

Sort any column, filter with conditions like > 100 or contains, select rows to highlight them on the map, and zoom to the selection.

Thematic styling

Colour by category, or by number in 3 to 9 classes using natural breaks, quantiles or equal intervals, with a legend and counts. KML colours can be kept.

Measure and draw

Distances, areas and perimeters on the WGS 84 ellipsoid, in metric, imperial or nautical units. Draw points, lines and polygons, edit their corners and attributes, with undo.

GPS tracks

For a GPX track: elevation profile, distance, ascent and descent, highest point, total and moving time, and average speed.

Formats

Format	Open	Save	Notes
GeoJSON			Also GeoJSON lines (.geojsonl) and Esri JSON. Saved in any coordinate system; other than WGS 84 it carries a crs member.
Shapefile			.shp + .dbf + .prj + .cpg, loose or zipped. Saved as a .zip, UTF-8, one file per geometry type.
KML / KMZ			Placemarks, styles and extended data. Saves KML. Image overlays aren't shown.
GPX / TCX			Waypoints, routes and tracks with heights and times. Saves GPX.
CSV			Latitude/longitude, X/Y or a WKT column, decimal or degrees-minutes-seconds.
TopoJSON			Each object becomes a layer.
FlatGeobuf			With its coordinate system.
GeoPackage			Every feature table becomes a layer.
PNG			The map view as an image, with scale bar and attribution.

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$1 in free credits for eligible new accounts. No card needed. Generators have separate account and credit requirements. The GIS viewer is free.

GIS viewer FAQ

Is this GIS viewer free?

Yes. Open, measure and convert as many files as you like, with no account, no watermark and no limits beyond your device's memory.

Are my files uploaded?

No. Files are read and converted in your browser tab. The map engine and the basemap are downloaded to your browser, but your data is never sent anywhere.

How do I open a shapefile?

Choose or drop the .shp, .dbf and .prj files together (add .cpg if there is one), or the .zip that holds them. The .prj places the data correctly; without it the coordinates are taken as longitude and latitude, or you're asked for the system if they aren't.

Which coordinate systems are supported?

Over 700 EPSG systems: WGS 84, Web Mercator, every UTM zone, US State Plane (NAD83), British National Grid, Lambert-93, the Dutch, Swiss, German, Polish and Nordic grids, GDA94/GDA2020 MGA, CGCS2000, JGD2011 and more, plus any system a .prj file describes. Datum shifts use the standard published parameters, accurate to a few metres for older datums; grid-file shifts aren't applied.

Can I convert KML to GeoJSON or shapefile?

Yes. Open the KML, go to Export, choose GeoJSON or Shapefile and download. Shapefiles get a .prj for the coordinate system you choose, a UTF-8 .cpg, and one file per geometry type when the layer mixes points, lines and polygons.

How accurate are the measurements?

Distances, areas and perimeters are computed on the WGS 84 ellipsoid (geodesics), the method survey and GIS software use, so they're correct to well under a millimetre for the shape you drew, at any size and latitude.

What does it not do?

It doesn't open raster data (GeoTIFF, imagery), run geoprocessing like buffers or overlays, or edit a GeoPackage in place. GPX keeps names, descriptions, heights and times but not custom extensions. The street basemap is detailed down to country, region and major road level.

How big can my files be?

Up to 1 GB together. Files are read in the background so the page stays responsive; hundreds of thousands of features work on a typical laptop.

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Free Online GIS ViewerOpen it, measure it, convert it.

Open GeoJSON, KML, GPX, shapefiles and more