QuickMapTools

GeoJSON Tools

GeoJSON is the standard JSON-based format for geospatial vector data — points, lines, polygons, and their attributes. Every modern web mapping library, web service, and GIS application reads it.

This page collects every GeoJSON tool on QuickMapTools in one place: viewers, converters, geometry operations, attribute filtering, and inspection. All run entirely in your browser. Your files never leave your device.

View GeoJSON

GeoJSON ViewerDrop a GeoJSON file and see it on an interactive map.
Universal Vector ViewerView GeoJSON alongside other vector formats.

Transform GeoJSON geometry

Buffer GeoJSONExpand or shrink features by any distance.
Dissolve GeoJSONMerge adjacent features by attribute.
Simplify GeoJSONReduce vertex count with Douglas-Peucker.
Convex Hull GeoJSONSmallest enclosing polygon around features.
Centroid GeoJSONCompute geometric centres of features.
Polygon to LineConvert polygons to their boundary lines.
Line to PolygonBuild polygons from closed lines.
Explode to PointsExtract vertices as individual points.
Flatten Multi-GeometrySplit multi-features into singles.
Combine FeaturesMerge multiple features into one.

Analyse, filter & inspect

Measure GeoJSONLengths, areas, and perimeters.
Bounding BoxCompute the envelope of a GeoJSON layer.
Filter by AttributeKeep only features matching an expression.
Select FeaturesPick features by attribute or geometry.
Clip GeoJSONCut features against a polygon boundary.
Inspect GeoJSONSee feature count, geometry types, attribute schema.
Rasterize GeoJSONBurn vector features into a GeoTIFF raster.

Convert GeoJSON to another format

GeoJSON to ShapefileExport GeoJSON as a zipped Shapefile.
GeoJSON to KMLExport for Google Earth or Google Maps.
GeoJSON to CSVFlatten features to a CSV table.
GeoJSON to GPXConvert to GPS exchange format.
GeoJSON to GeoPackageExport to OGC GeoPackage (SQLite).
GeoJSON to GMLExport to OGC GML XML.
GeoJSON to DXFExport geometry to AutoCAD DXF.

Frequently asked questions

What is GeoJSON used for?

GeoJSON (RFC 7946) is the most common format for sharing geospatial vector data on the web. It is read natively by Leaflet, Mapbox GL, OpenLayers, ArcGIS API, QGIS, and almost every web mapping library and GIS tool.

Can I edit GeoJSON in the browser?

Yes — every QuickMapTools GeoJSON operation runs locally in your browser using WebAssembly. Your file never leaves your device.

What is the biggest GeoJSON file I can process?

Files up to a few hundred MB usually work in modern browsers. Very large GeoJSON files (>500MB) may exceed browser memory — convert them to FlatGeobuf or GeoPackage for streaming access instead.

How do I convert GeoJSON to Shapefile?

Use our GeoJSON to Shapefile converter. Drop the file, click download, and you get a zipped Shapefile ready for ArcGIS or QGIS.