Open .kml Files Online — Free KEYHOLE Viewer
Open KEYHOLE File Online — Free & Instant
No signup required. Works in your browser.
📁 Drag & drop your file here
or click to browse • Max 100MB
✅ Free • ⚡ Instant • 🔒 Secure • 💻 No install
What Is a .kml File?
A .kml file is a gis format known as KEYHOLE. Google Earth KML (alt) This format is created by Google and is widely used by cartographers and urban planners.
KEYHOLE files contain structured gis data that requires compatible software to open. With OpenAnyFile, you can map and overlay .kml files directly in your browser without installing any software.
How to Open .kml Files Online
- Visit OpenAnyFile KEYHOLE page
- Drag and drop your .kml file onto the upload area, or click "Browse" to select it
- OpenAnyFile automatically detects the KEYHOLE format using magic byte analysis
- View, analyze, and map and overlay your file contents in the browser
- Optionally convert to GEOJSON, CSV, KMZ, SHP or download
Software That Opens .kml Files
.kml files are primarily created by Google. In the gis space, you may encounter .kml files from third-party tools, online converters, or export functions. Regardless of the source, OpenAnyFile handles them all.
Open .kml on Different Platforms
- Windows: Use the original software or upload to OpenAnyFile for instant access
- macOS: Preview may not support .kml — use OpenAnyFile as a universal viewer
- Linux: Open-source alternatives exist, or use OpenAnyFile in any browser
- Mobile (iPhone/Android): OpenAnyFile works on all mobile browsers
Common .kml File Problems
Namespace issues
Other common issues include: your OS not recognizing the file extension, the file appearing corrupted after download, or lacking the required software. OpenAnyFile bypasses all these issues with universal format detection.
Convert KEYHOLE to Other Formats
KEYHOLE files can be converted to 5 formats including GEOJSON, CSV, KMZ, SHP, GPX.
Related GIS Formats
If you work with .kml files, you may also encounter these gis formats:
- ADF (.adf) — Open & convert .adf files online
- CityGML (citygml) — Open & convert citygml files online
- COG (.tif) — Open & convert .tif files online
- COPC (.copc.laz) — Open & convert .copc.laz files online
- CZML (.czml) — Open & convert .czml files online
- DEM (.dem) — Open & convert .dem files online
- E00 (.e00) — Open & convert .e00 files online
- E57 (.e57) — Open & convert .e57 files online
- ECW (.ecw) — Open & convert .ecw files online
- EPT (.json) — Open & convert .json files online
Popular KEYHOLE Conversions
Frequently Asked Questions
What is a .kml file?
A .kml file is a gis format called KEYHOLE. Google Earth KML (alt)
How do I open a .kml file without installing software?
Upload your .kml file to OpenAnyFile. Our browser-based tool instantly detects and displays it — no downloads needed.
What program creates .kml files?
.kml files are typically created by Google.
Can I convert .kml to another format?
Yes. OpenAnyFile converts .kml to GEOJSON, CSV, KMZ, SHP, GPX.
Is it safe to open .kml files online?
Yes. OpenAnyFile processes files in a secure, isolated environment. Files are automatically deleted and all transfers use HTTPS.
Can I open .kml on my phone?
Yes. OpenAnyFile works on all mobile browsers including iPhone and Android.