KML Viewer

Open KML files on a large interactive map. Explore placemarks, routes and boundaries, inspect attributes, and export your geographic data.

Map & satellitePoints, lines & polygonsFolders & stylesLocal file processing
Drop your KML files here

Up to 10 files • 10 MB per file • 100,000 coordinates and 5,000 geometry parts in total.

File contents stay in your browser. External map providers receive your IP address and requested map areas. Remote KML links and images are not fetched.

Open a KML file or try the demo.
Click the map to inspect coordinates

Statistics reflect visible geometry parts. Length and polygon area are spherical estimates, not surveying measurements. Polygon holes are subtracted; overlapping polygons are counted separately. Altitudes are preserved as supplied; the map is a 2D view.

Files & folders

Toggle folders or individual features. Turn off “KML styles” to use each file’s color.

Feature inspector

Click a feature on the map or select View in the table below.

Feature explorer

Search filters the table only. Use the checkboxes to change the map and exports.

ShowNameGeometryFolderCoordinatesMap

Exports include visible geometry parts. KML export preserves names, plain-text descriptions, folders, basic styles, altitude modes and attributes. MultiGeometry is split into separate placemarks; gx:Track becomes a line. Tours, overlays, models, time animation and vendor extensions are not preserved. PNG contains geometry only, without background imagery.

Supported KML features and limits

Supported: Point, LineString, Polygon with inner holes, MultiGeometry, Folder, Document, local Style / normal StyleMap, ExtendedData, and gx:Track / gx:MultiTrack as lines. Original visibility flags are applied when loading.

NetworkLink, GroundOverlay, ScreenOverlay, PhotoOverlay, Model, Tour, external style files and external icons are not rendered. Unsupported elements are reported after import. Self-intersecting polygons and areas spanning more than a hemisphere can give unreliable area results. KMZ and GeoJSON imports belong in their separate viewers.

Last Updated: 19-Sep-2026 6 min read

KML Viewer: View KML Files Online

A KML Viewer is a simple online tool that lets you open and view KML files on an interactive map. It is useful for checking locations, routes, boundaries, markers, and other geographic information.

Instead of opening a KML file as raw XML text, you can use a KML Viewer to see the geographic information visually on a map.

What Is KML?

KML stands for Keyhole Markup Language. It is an XML-based file format used to store and display geographic information.

KML files are commonly used with mapping applications and can contain different types of geographic information, including:

Locations

Points and markers representing specific places.

Routes

Paths, roads, and other line-based geographic features.

Boundaries

Areas, zones, property boundaries, and regions.

Places and Descriptions

Names, labels, descriptions, and other map information.

KML files normally use the .kmlfile extension.

What Is a KML Viewer?

A KML Viewer displays the geographic information stored inside a KML file on an interactive map.

For example, if your KML file contains several locations, the viewer can display them as markers. If it contains a route, you can see the route drawn on the map. This is much easier than trying to understand XML and geographic coordinates manually.

How to Use a KML Viewer

1. Open the KML Viewer

Open the KML Viewer in your web browser. You do not need complicated GIS software for basic viewing.

2. Upload Your KML File

Select your .kmlfile and upload it to the viewer.

3. View the Data on the Map

The tool reads the geographic information from the KML file and displays it on an interactive map.

4. Explore Your Data

Zoom in, zoom out, move around the map, and inspect the locations, routes, or boundaries contained in your KML file.

Why Use a KML Viewer?

A KML Viewer is useful when you want to quickly check a KML file without installing professional mapping or GIS software.

  • Check GPS locations.
  • View routes and paths.
  • Check geographic boundaries.
  • View property and land areas.
  • Inspect survey data.
  • Check telecom site locations.
  • View network coverage areas.
  • Review geographic points.
  • Check data exported from mapping software.
  • Test KML files before using them in another application.

What Can a KML File Contain?

Placemarks

A placemark represents a specific location on the map. It can be used for a building, tower, airport, shop, or other point.

Paths

Paths are used to show lines or routes between locations. For example, a KML file can contain a road route, walking route, network route, or survey path.

Polygons

Polygons are used to show areas and boundaries. They can represent land parcels, buildings, districts, coverage areas, or service zones.

Folders

KML can organize multiple geographic features into folders. This can make large KML files easier to manage.

KML Example

A simple KML file can contain a placemark like this:

<Placemark> <name>Example Location</name> <Point> <coordinates>77.5946,12.9716,0</coordinates> </Point> </Placemark>

The coordinates represent the location of the point. A KML Viewer reads this information and places the marker at the corresponding location on the map.

KML Coordinates

KML coordinates normally use the following order:

Longitude, Latitude, Altitude

For example:

77.5946,12.9716,0
77.5946

Longitude

12.9716

Latitude

0

Altitude

Altitude can be used when the KML data contains height information.

KML Viewer for GIS Data

KML is commonly used for sharing geographic information between mapping applications. A KML Viewer provides a quick way to inspect GIS-related data such as points, lines, boundaries, and areas.

It can be useful when checking data exported from GIS software, mapping applications, GPS devices, or other geographic tools.

For advanced GIS analysis and editing, professional GIS software may still be more suitable. However, for simply viewing a KML file, an online viewer can be much faster.

KML Viewer for Developers

Developers may use KML when working with mapping applications or geographic data. A KML Viewer can help check whether the generated data is displayed correctly.

  • Check whether locations are displayed correctly.
  • Verify geographic coordinates.
  • Check whether routes appear in the correct place.
  • Verify polygon shapes.
  • Check multiple geographic features.
  • Inspect KML data before adding it to an application.

Can I View a KML File Without Google Earth?

Yes. You do not always need Google Earth or professional GIS software to inspect a KML file.

An online KML Viewer can display the geographic information directly in your web browser. This is especially useful when you only need to quickly check the contents of a KML file.

KML Viewer vs. GIS Software

A KML Viewer is mainly designed for quickly viewing and checking KML data.

Professional GIS software provides additional features such as:

  • Geographic analysis
  • Data editing
  • Layer management
  • Data conversion
  • Spatial calculations
  • Advanced map creation
Simple answer:If your main goal is simply to view a KML file on a map, an online KML Viewer can be a convenient option.

KML vs. KMZ

KML and KMZ are closely related geographic file formats.

FormatDescription
KMLAn XML-based geographic file used to store and display geographic information.
KMZA compressed version of KML that can also contain related files such as images.

If a tool supports KMZ files, you may be able to view both KML and KMZ geographic data using the same application.

Who Can Use a KML Viewer?

GIS Professionals
RF Planning Engineers
Telecom Engineers
Surveyors
Developers
Students
Researchers
GPS Users
Data Analysts

FAQ on Kml Viewer

What is a KML Viewer?

A KML Viewer is an online tool that displays geographic information from a KML file on an interactive map.

What is a KML file?

KML stands for Keyhole Markup Language. It is an XML-based format used to store and display geographic information.

Can I view a KML file online?

Yes. An online KML Viewer can display geographic features from a KML file directly in your web browser.

Do I need Google Earth to open a KML file?

No. Google Earth is one option for viewing KML files, but an online KML Viewer can also be used to inspect KML data.

What coordinate order does KML use?

KML normally uses longitude, latitude, and altitude. For example, 77.5946,12.9716,0 represents longitude, latitude, and altitude respectively.

Can KML contain polygons?

Yes. KML supports polygons and can be used to display boundaries, zones, land parcels, and coverage areas.

Can KML contain routes?

Yes. KML can contain line features that can be used to display routes, paths, roads, and other linear geographic information.