QuickMapTools

Convert KML Line to Polygon Online

Fill closed KML LineString features into polygon geometry in your browser.

All processing happens locally in your browser. Your files never leave your device.

KML polygon output renders as a filled region overlay in Google Earth — great for sharing converted GPS tracks or boundary areas.

→ Full guide: Line to Polygon Tools

KML Tools

KML Viewer
KML to PDF
KML to GeoJSON
KML to DXF
KML to Excel
KML to Shapefile
KML to CSV
Simplify KML

Convert KML

KML to GeoJSON
KML to Shapefile
KML to GeoPackage
KML to CSV

Visualization Tools

KML Viewer
Visualize Any Format
GeoJSON Viewer
Shapefile Viewer
CSV Viewer
GPX Viewer

Grid Tools

Grid Generator

Bounding Box Tools

KML Bounding Box
GeoJSON Bounding Box
Shapefile Bounding Box
GeoPackage Bounding Box
GML Bounding Box

Measurement Tools

Measure KML Features
Measure GeoJSON Features
Measure Shapefile Features
Measure GeoPackage Features
Measure GML Features

Buffer Tools

Buffer KML
Buffer GeoJSON
Buffer Shapefile
Buffer GeoPackage
Buffer GML

Dissolve Tools

Dissolve KML
Dissolve GeoJSON
Dissolve Shapefile
Dissolve GeoPackage
Dissolve GML

Centroid Tools

KML Centroid
GeoJSON Centroid
Shapefile Centroid
GeoPackage Centroid
GML Centroid

Simplification Tools

Simplify KML
Simplify GeoJSON
Simplify Shapefile
Simplify GPX
Simplify GeoPackage

Data Inspection

Geospatial File Inspector
GeoJSON Inspector
Shapefile Inspector
GeoTIFF Inspector

Feature Selection Tools

Select KML Features
Select GeoJSON Features
Select Shapefile Features
Select GeoPackage Features
Select GML Features

Filter by Attribute Tools

Filter KML by Attribute
Filter GeoJSON by Attribute
Filter Shapefile by Attribute
Filter GeoPackage by Attribute
Filter GML by Attribute
Filter Any Vector Format

Convex Hull Tools

Convex Hull KML
Convex Hull GeoJSON
Convex Hull Shapefile
Convex Hull GeoPackage
Convex Hull GML

Polygon to Line Tools

KML Polygon to Line
GeoJSON Polygon to Line
Shapefile Polygon to Line
GeoPackage Polygon to Line
GML Polygon to Line

More Line to Polygon Tools

GeoJSON Line to Polygon
Shapefile Line to Polygon
GeoPackage Line to Polygon
GML Line to Polygon

Explode to Points Tools

Explode KML to Points
Explode GeoJSON to Points
Explode Shapefile to Points
Explode GeoPackage to Points
Explode GML to Points

Flatten Multi-Geometry Tools

Flatten KML
Flatten GeoJSON
Flatten Shapefile
Flatten GeoPackage
Flatten GML

Combine Features Tools

Combine KML Features
Combine GeoJSON Features
Combine Shapefile Features
Combine GeoPackage Features
Combine GML Features

Spatial Operations

Clip GeoJSON
Clip Shapefile
Clip Vector Data
SQL Query
Explode Multi-Geometries
Fix Geometries

Raster Operations

Crop GeoTIFF
Crop Raster
Resize GeoTIFF
Resample Raster
Extract Band
Reproject GeoTIFF

Rasterization Tools

Rasterize KML
Rasterize GeoJSON
Rasterize Shapefile
Rasterize GPX
Rasterize GeoPackage
Rasterize GML

Reprojection Tools

Reproject GeoTIFF
Reproject Shapefile
Reproject Vector
Assign CRS

Coordinate Conversion Tools

Lat/Long to DMS

Decimal to degrees/minutes/seconds

DMS to Lat/Long

Degrees/minutes/seconds to decimal

Lat/Long to UTM

Geographic to UTM coordinates

UTM to Lat/Long

UTM to geographic coordinates