GIS GIS
Tile math, geometry, CRS and GPS track tools.
- Lng/Lat ↔ Tile Converter
Convert longitude/latitude to a slippy-map tile x/y/z, and back.
- Tile ↔ Quadkey Converter
Convert a tile x/y/z to a Bing Maps-style quadkey, and back.
- Tile to Bounding Box
Get the longitude/latitude bounding box covered by a tile x/y/z.
- Bbox to Zoom Calculator
Find the zoom level that fits a bounding box inside a given viewport size.
- GeoJSON Bounding Box
Get the [west, south, east, north] bounding box of a GeoJSON shape.
- GeoJSON Centroid
Get the geometric centroid (longitude/latitude) of a GeoJSON shape.
- GeoJSON Area Calculator
Get the area (in square meters) of a GeoJSON Polygon or MultiPolygon.
- GeoJSON Simplify
Reduce the number of points in a GeoJSON line or polygon (Douglas-Peucker).
- GeoJSON Line Length
Get the total length of a GeoJSON LineString or MultiLineString.
- Point Along a Line
Find the point at a given distance along a GeoJSON LineString.
- Distance Between Two Points
Get the great-circle distance between two longitude/latitude points.
- Bearing Between Two Points
Get the initial compass bearing from one longitude/latitude point to another.
- Midpoint Between Two Points
Get the great-circle midpoint between two longitude/latitude points.
- GIS Format Converter
Convert between GeoJSON, KML, GPX, CSV and WKT.
- Convert GeoJSON to KML
Convert GeoJSON to KML for Google Earth and Google My Maps, in your browser.
- Convert KML to GeoJSON
Convert a KML file (e.g. from Google Earth) to GeoJSON, in your browser.
- Convert GeoJSON to CSV
Convert GeoJSON to a CSV spreadsheet with lat/lon columns, in your browser.
- Convert CSV to GeoJSON
Convert a CSV of coordinates to GeoJSON, in your browser.
- Convert GeoJSON to GPX
Convert GeoJSON points/lines to a GPX file for GPS devices and apps, in your browser.
- Convert GPX to GeoJSON
Convert a GPX file (GPS track/waypoints) to GeoJSON, in your browser.
- Convert KML to GPX
Convert a KML file to GPX for GPS devices and apps, in your browser.
- Convert GPX to KML
Convert a GPX file (GPS track/waypoints) to KML for Google Earth, in your browser.
- Convert GeoJSON to WKT
Convert GeoJSON geometry to WKT (Well-Known Text), in your browser.
- Convert WKT to GeoJSON
Convert WKT (Well-Known Text) geometry to GeoJSON, in your browser.
- Convert CSV to KML
Convert a CSV of coordinates to KML for Google Earth and My Maps, in your browser.
- Convert KML to CSV
Convert a KML file (e.g. from Google Earth) to a CSV spreadsheet, in your browser.
- Reproject a Point (CRS)
Convert a coordinate between WGS84, Web Mercator and any UTM zone.
- WGS84 to Web Mercator Converter
Convert longitude/latitude (WGS84) to/from Web Mercator (EPSG:3857) meters.
- CRS / EPSG Code Lookup
Search common coordinate reference systems by EPSG code or name.
- GeoJSON / KML / GPX / CSV Viewer
Inspect a spatial dataset: feature count, geometry types, bounds and property keys.
- GPX Track Viewer
Inspect a GPX track: point count, bounds, elevation and time coverage.
- GPX Track Cleaner (Dedupe)
Remove consecutive duplicate points from a GPX track.
- GPX Track Simplify
Reduce a GPX track to fewer points using Douglas-Peucker simplification.
- GPX Track Distance
Compute the total distance covered by a recorded GPX track.
- GPX Elevation Profile
Chart cumulative elevation gain/loss along a GPX track.