Convert CSV to GeoJSON online for free — right in your browser. No upload, no sign-up, batch conversion, coordinate systems and attributes preserved.
Efficiently convert from CSV to GEOJSON format
All processing is done locally in your browser
Output standard GEOJSON format
Convert csv to geojson online for free — right in your browser. No upload, no sign-up, batch conversion, coordinate systems and attributes preserved.
Coordinate Column Mapping
Select columns containing coordinate data. Auto-detected columns are pre-selected.
CSV is a plain text table format with comma-separated columns. In GIS, CSV is commonly used to store tabular data with coordinate columns (such as longitude, latitude). While CSV itself is not a geospatial format, by specifying coordinate fields, tabular data can be converted to geometric features like points, lines, or polygons. CSV is the most common way to export geographic data from spreadsheets, databases, and sensors.
GeoJSON is a geospatial data interchange format based on JSON. It can represent Point, LineString, Polygon, MultiPoint, MultiLineString, MultiPolygon, and GeometryCollection geometries. Defined by RFC 7946, GeoJSON has become one of the most popular data exchange formats in web GIS. GeoJSON files use WGS84 coordinates and support Feature objects with associated properties and FeatureCollections for organizing multiple features.
Enormous amounts of geographic data live in spreadsheets: address lists, sensor logs, field surveys, export tables. As long as rows carry latitude and longitude values, that CSV is already a point dataset — it just isn't map-readable. Converting CSV to GeoJSON turns each row into a Point feature with every column attached as a property, instantly usable in Leaflet, QGIS, Mapbox, or any JSON pipeline. It is the quickest route from spreadsheet to interactive map.
Common header names like lat/latitude and lon/lng/longitude/x are detected automatically. You can also pick the columns manually if the headers are unusual.
Decimal degrees (like 52.52, 13.40) work directly. Degrees-minutes-seconds values must be converted to decimal degrees first.
Yes — every non-coordinate column becomes a feature property, including numbers, text, and empty values.
Upload your CSV file — drag and drop it onto the page, or browse from your device. You can add several files at once for batch conversion.
The conversion runs automatically in your browser. No upload, no server — your data stays on your device the entire time.
Download the GeoJSON file. Each input produces its own output, ready to use in your GIS, web map, or archive.