Buffer - Zone of Influence
Create a zone of influence around geographic features
How to use this tool?
- Upload a Shapefile (select all the files: .shp, .shx, .dbf, .prj, .cpg), a GeoJSON, or a ZIP with the complete shapefile.
- Choose the buffer distance in meters.
- Optional: choose whether you want to merge the buffers and the output format.
Example of valid files:
manzanas.shp manzanas.shx manzanas.dbf manzanas.prj manzanas.cpg
manzanas.shp manzanas.shx manzanas.dbf manzanas.prj manzanas.cpg
Don't have a sample file?
Download sample shapefile
or
Countries GeoJSON.
Recommended: use GeoJSON for maximum web compatibility. For ArcGIS/QGIS, use Shapefile.
Process completed!
Your file has been processed successfully.
Visual Example
Polygon and line buffer: zones of influence at a configurable distance.
Did you know we have Pro tools?
Free Tools
- Buffer
- Clip
- Union
- Basic formats
Pro Tools
- Boundary report writing
- Advanced analysis
- Multiple formats
- Priority Support
Frequently Asked Questions
A buffer is a zone or polygon that surrounds a geographic feature at a specific distance. It's useful for proximity analysis, such as determining which features are within a certain distance of others, creating protection zones, or analyzing service areas.
When the "dissolve results" option is enabled, overlapping buffer polygons are combined into a single continuous polygon. This is useful when you need one unified area instead of multiple individual overlapping polygons.
The distance must always be specified in meters, regardless of the input layer's coordinate system. The system will automatically convert this distance according to the corresponding projections and reference systems.
The tool supports Shapefile (SHP), GeoJSON, KML, KMZ, GeoPackage (.gpkg), GML, GPX, GeoParquet (.parquet), FlatGeobuf (.fgb), and TopoJSON. It also accepts ZIP files containing complete Shapefiles.
Did you find this tool useful?
Help us improve by sharing your experience