Free Online GeoJSON Validator
Validate your GeoJSON files and strings for structural correctness, RFC 7946 compliance, and common schema errors. Drag and drop a file or paste GeoJSON text. All validation happens in your browser.
What this validates
Validates GeoJSON against RFC 7946: coordinate arrays, geometry types, Feature/FeatureCollection structure, CRS conventions, and required properties.
How to use
Drag and drop a .geojson file, or paste GeoJSON text into the input area. Errors and warnings are highlighted with line numbers.
Common errors detected
Invalid coordinate ranges (lat > 90 or < -90), mismatched geometry type arrays, missing required properties, nested coordinate depth issues.
Export fixed GeoJSON
Some common structural issues can be auto-fixed. The corrected GeoJSON can be copied or downloaded for immediate use.
Privacy
GeoJSON content never leaves your browser. All validation is done client-side using a lightweight parser.
Why validate GeoJSON?
Invalid GeoJSON causes silent failures in map renderers, API rejections, and data corruption. Validating before publishing prevents downstream issues.