KML Editor Online
Edit KML placemark names, visibility, and basic colors online, then download a clean KML file privately in your browser.
The KML Editor lets you open a local KML file, rename supported placemarks, toggle feature visibility, adjust basic colors, and download an edited KML without uploading geographic data.
Edit locally in your browser. Files are never uploaded.
Placemark editor
Load a KML file to edit placemark names, visibility, and basic colors.
Point · -122.4194,37.7749,0
KML Editor Technical Specifications & Standards
WGS 84 (EPSG:4326)
Standard global ellipsoidal coordinate reference system
Client-side Geodesics
Coordinates are retained as source text; no reprojection.
GeoJSON · KML · CSV · SVG
Compatible with QGIS, ArcGIS, Google Earth & CAD
100% Client-Side
Calculations run in-browser. Zero coordinate logging.
How to Use the KML Editor Online
Follow this step-by-step procedure to execute precise spatial measurements and export results.
- 1Upload KML: Choose a local .kml file.
- 2Edit placemarks: Change names, visibility, and basic line/fill color settings.
- 3Download edited KML: Export a new KML file for Google Earth or compatible GIS software.
Geodesic Precision vs. Competitor Mapping Approaches
Most legacy mapping utilities (such as CalcMaps and FreeMapTools) rely on planar Web Mercator projections or spherical approximations, causing significant mathematical distortion at higher latitudes. GeoMap Suite computes exact ellipsoidal geodesics on the WGS84 reference ellipsoid.
| Calculation Model | Mathematical Basis | Distortion on WGS84 | Standard Tools | Practical Application |
|---|---|---|---|---|
| Planar (Web Mercator) | Cartesian dx² + dy² | 10% to 200%+ error | CalcMaps / Simple map tools | Distorts drastically away from equator. Inaccurate for true distance. |
| Spherical Great-Circle | Haversine (R = 6,371 km) | Up to 0.5% (~5 km/1,000 km) | Basic Google Maps wrappers | Ignores Earth's polar flattening. Reasonable for rough estimates. |
| GeoMap Suite Ellipsoidal | Karney Direct/Inverse WGS84 | < 15 nanometers (<0.0001%) | GeoMap Suite | Geodetic surveying, maritime, flight paths & legal boundary analysis. |
Rename a field survey layer
A planner updates placemark labels before sharing a Google Earth map.
Input Parameters
- File
- survey-points.kml
Computed Outputs
- Result
- Share-ready KML 2.2 document
Step-by-Step Mathematical Process
- Load local placemarks.
- Rename features and hide obsolete records.
- Choose colors and download the edited KML.
Understanding Your Results & Practical Interpretation
Editing versus converting
The editor changes simple presentation and label fields while keeping the KML format. Use the converters when you need CSV, GeoJSON, or GPX output.
Practical Applications & Real-World Use Cases
Prepare a clean Google Earth layer
Rename, hide, and recolor local survey or planning placemarks before sharing.
Mathematical Methodology & Geodetic Accuracy
Client-side KML DOM editing
Supported Placemark geometry and presentation fields are read into an editable local model and serialized back to KML 2.2.
KML Placemark → edit model → KML 2.2Limitations & Boundary Conditions
- •Advanced tours, NetworkLinks, embedded models, and complex shared styles are not edited.
Authoritative Reference Standards
Troubleshooting & Geographic Edge Cases
Why are some features not editable?
The lightweight editor focuses on Point, LineString, and Polygon placemarks. NetworkLinks and complex 3D assets require a full Google Earth or desktop GIS workflow.
Frequently Asked Questions
Yes. Load a local KML file, make supported edits, and download the result without an account.