GeoJSON Developer Tools
Free online tools to view, validate, convert, and transform GeoJSON data. No signup required. Everything runs in your browser.
GeoJSON Tools
GeoJSON Viewer
View and visualize GeoJSON files on an interactive map. Paste or upload your GeoJSON data to see it rendered instantly.
GeoJSON Validator
Validate your GeoJSON data against the RFC 7946 specification. Find and fix errors in your GeoJSON files.
GeoJSON Simplifier
Simplify complex GeoJSON geometries to reduce file size while preserving shape accuracy.
GeoJSON Bounding Box Calculator
Calculate the bounding box envelope of any GeoJSON geometry. Get min/max coordinates instantly.
GeoJSON Feature Counter
Count features and geometries in your GeoJSON data. Get a detailed breakdown by geometry type.
GeoJSON Pretty Printer
Format and beautify your GeoJSON with proper indentation for easy reading and debugging.
GeoJSON Minifier
Minify GeoJSON data by removing whitespace and reducing coordinate precision to shrink file size.
GeoJSON Area Calculator
Calculate the area of GeoJSON polygons in square meters and square kilometers.
GeoJSON Length Calculator
Calculate the total length of GeoJSON LineStrings in meters and kilometers.
GeoJSON Centroid Calculator
Find the geographic center point of any GeoJSON geometry. Calculate centroids for polygons and feature collections.
GeoJSON Point Generator
Generate GeoJSON Point features from coordinates. Create point data for web maps.
GeoJSON Polygon Generator
Draw and generate GeoJSON Polygon features interactively on a map.
GeoJSON Merge Tool
Merge multiple GeoJSON files into a single FeatureCollection.
GeoJSON Buffer Tool
Create buffer zones around GeoJSON geometries at a specified distance.
GeoJSON Clip Tool
Clip GeoJSON features to a bounding box or polygon boundary.
GeoJSON Difference Tool
Calculate the geometric difference between two GeoJSON polygons.
GeoJSON Union Tool
Compute the union of multiple GeoJSON polygons into a single geometry.
GeoJSON Intersection Tool
Find the intersection area between two GeoJSON polygons.
GeoJSON Dissolve Tool
Dissolve adjacent GeoJSON polygons into larger combined features.
GeoJSON Coordinate Precision Reducer
Reduce coordinate precision in GeoJSON to shrink file size without losing meaningful accuracy.
GeoJSON Rewind Tool
Fix winding order of GeoJSON polygon coordinates to follow the right-hand rule per RFC 7946.
GeoJSON Coordinate Flip Tool
Swap latitude and longitude coordinates in GeoJSON data to fix coordinate order issues.
GeoJSON Flatten Tool
Flatten Multi-geometries into individual single-type GeoJSON features.
Format Converters
GeoJSON to KML Converter
Convert GeoJSON files to KML format for use in Google Earth and other mapping applications.
KML to GeoJSON Converter
Convert KML files from Google Earth to GeoJSON format for web mapping and GIS applications.
GeoJSON to WKT Converter
Convert GeoJSON geometries to Well-Known Text format for use in databases like PostGIS.
WKT to GeoJSON Converter
Convert Well-Known Text geometries to GeoJSON format for web mapping and visualization.
GPX to GeoJSON Converter
Convert GPX track files to GeoJSON format. Transform GPS data for web mapping.
Lat/Long to GeoJSON Converter
Convert latitude and longitude coordinates to GeoJSON Point features.
GeoJSON to Lat/Long Extractor
Extract latitude and longitude coordinates from GeoJSON features into a table or CSV.
Guides & Resources
What is GeoJSON?
Learn about GeoJSON - the open standard format for encoding geographic data structures using JSON.
GeoJSON Specification (RFC 7946)
A developer-friendly guide to the GeoJSON specification RFC 7946 with examples and explanations.
GeoJSON Examples
Browse common GeoJSON examples for Point LineString Polygon and FeatureCollection types.
GeoJSON Best Practices for Developers
Best practices for working with GeoJSON data in web mapping and GIS applications.
Coordinate Reference Systems (CRS)
Understand coordinate reference systems and how they relate to GeoJSON and web mapping.
GeoJSON vs Shapefile Comparison
Compare GeoJSON and Shapefile formats. Understand when to use each format for geospatial data.
GeoJSON vs TopoJSON Comparison
Compare GeoJSON and TopoJSON formats. Learn when topology-preserving formats save space.
GeoJSON vs KML Comparison
Compare GeoJSON and KML formats for geographic data exchange and visualization.
Web Mapping Developer Guide
A comprehensive guide to building interactive web maps with GeoJSON Leaflet and modern tools.
Leaflet GeoJSON Tutorial
Learn how to load and display GeoJSON data on Leaflet maps with interactive examples.
Using GeoJSON with PostGIS
Learn how to import export and query GeoJSON data in PostGIS spatial databases.
Using GeoJSON with Mapbox GL JS
How to use GeoJSON data with Mapbox GL JS for high-performance web mapping.