verified_user EUDR Compliant

Polygon Fixer

Validate and repair polygon geometry instantly. Professional-grade geospatial correction optimized for European Union Deforestation Regulation compliance.

EUDR GEOJSON / WKT
VALIDATED N/A

Validation Status

info

No validation run yet

Paste a polygon and click Check Polygon.

EPSG:4326 | ZOOM AUTO

Geometry Standards Guide

autorenew

CW vs CCW

Winding order determines interior direction. Exterior rings should be CCW and hole rings should be CW.

CW vs CCW
rule

Not closed polygon

Linear rings must be closed. The first and last coordinates must be identical to form a valid polygon.

Not closed polygon
content_copy

Duplicate points (EUDR #7)

EUDR rounds coordinates to 6 decimals. Consecutive coordinates that become identical after rounding are duplicates and are removed.

Duplicate points (EUDR #7)
call_split

Self-Intersections (EUDR #1)

Polygon edges must not cross. Figure-eight shapes and crossing lines are rejected by the EUDR system.

Self-Intersections (EUDR #1)
donut_large

No holes / doughnuts (EUDR #3)

EUDR does not accept polygons with holes — only the outer boundary is read. Submit holes as separate polygons (e.g. two half-moon shapes).

No holes / doughnuts (EUDR #3)
public

WGS84 lon,lat range (EUDR #11)

Coordinates must be WGS84 (EPSG:4326) decimal degrees in longitude,latitude order — longitude ±180, latitude ±90.

EPSG:4326
horizontal_rule

Straight-line coordinates (EUDR #6)

Coordinates that all sit on a straight line enclose no area and are rejected by the EUDR system.

No Zero-Area Lines
sell

EUDR properties (EUDR #9, #12, #14)

Optional properties are case-sensitive: ProducerName, ProducerCountry (ISO2), ProductionPlace, Area (number in hectares — points default to 4 ha).

Case-Sensitive Properties
filter_3

Less than 3 unique points

A valid polygon must have at least 3 unique vertices. Fewer points cannot enclose an area.

Less than 3 unique points
crop_3_2

Zero-area polygon

Polygons with zero area are invalid.

Zero-area polygon
tune

Extreme precision collapse

Polygons with extremely high precision can cause computational issues.

Extreme precision collapse
hub

Disconnected shapes (should be MultiPolygon)

Multiple disconnected shapes should be represented as a MultiPolygon.

Disconnected shapes (should be MultiPolygon)