KML Validator
Validate your Keyhole Markup Language files. Check for errors, warnings, and data quality issues. Free and private — files are processed in your browser.
What we check
- Valid XML structure
- Required elements and schema compliance
- Coordinate bounds and validity
- Missing or empty feature names
- Duplicate coordinates
- Data quality suggestions
Common issues we detect
Invalid XML structure from Google Earth exports or manual editing, broken coordinate pairs (odd number of values), empty placemarks with no geometry, missing required elements like coordinates tags, invalid color codes in styles (must be AABBGGRR hex format), broken icon references, and StyleMap issues that prevent proper rendering.
When to validate your KML
Before importing to Google Earth or Google My Maps to avoid errors, after exporting from third-party tools that may create invalid KML, when files won't display correctly in Google Earth, before sharing with clients or team members, or after batch processing multiple KML files to ensure data integrity across your geographic dataset.
Frequently Asked Questions
What does the KML validator check?
The validator checks XML structure, KML schema compliance, coordinate validity, required elements, missing or empty placemark names, duplicate coordinates, and StyleMap references. It also flags common issues like invalid color codes or broken icon links.
Is my KML file sent anywhere?
No. All validation is client-side. Your KML file is processed in your browser and never uploaded to any server.
What's the file size limit?
The online validator supports files up to 5MB. For larger Google Earth files or batch validation, the full Takeout Tools app handles files of any size.
Will this work with Google Earth KML files?
Yes! The validator is designed to work with KML files from Google Earth, Google My Maps, and other KML-producing applications. It checks for common issues specific to these platforms.
Convert KML files
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