Buffer, clip, intersect, dissolve, and more — 15 spatial operations on your CSV, Excel, GeoJSON, Shapefile, or GeoPackage data. All geoprocessing happens on the server using proper projected coordinates, not raw lat/lon degrees.
15 Vector Geoprocessing Operations, Explained
Simple Buffer
Create a zone of a fixed distance around every feature — for setbacks, impact radii, or proximity zones.
Buffer by Feature
Same as Simple Buffer, but the distance is read from a column, so different features get different-sized buffers in one pass.
Multi-ring Buffer
Generate several concentric buffer rings at once — e.g. 100m/500m/1km impact zones.
Centroid
Reduce each polygon or line to its center point.
Convex Hull
Draw the smallest polygon enclosing a set of features.
Simplify
Reduce vertex count on complex geometry while preserving its overall shape — useful for large files.
Dissolve / Merge
Combine features that share the same attribute value into a single merged shape.
Area & Length Calculator
Add accurate area (polygons) or length (lines) as a new column, in your choice of units.
Clip
Cut one layer to the boundary of another.
Intersect
Keep only the overlapping area between two layers.
Union
Combine two layers into one, preserving all attributes from both.
Erase (Difference)
Remove the area of one layer from another.
Spatial Join
Attach attributes from one layer to another based on their spatial relationship.
Nearest Feature
For each feature in one layer, find the closest feature in another and report the distance.
Point-in-Polygon Count
Count how many points fall inside each polygon — e.g. facilities per district.
Frequently Asked Questions
What file formats can I upload?
CSV, TSV, Excel (.xlsx/.xls), GeoJSON, Shapefile (as a .zip), and GeoPackage. For CSV/Excel, you can build geometry from latitude/longitude columns, a WKT column, or a coordinate-sequence column.
Is my uploaded data stored on your servers?
No. Files are processed in memory for your request and discarded immediately afterward — nothing is saved or retained.
What coordinate systems are supported?
Any data referenced in WGS84 (latitude/longitude). Distance and area operations automatically reproject to an appropriate local UTM zone for accurate real-world measurements, rather than computing directly on raw degrees.
What's the maximum file size?
100MB on the free tier. Larger file support is launching soon with our premium plan.
Can I use this for a professional or commercial GIS project?
Yes — it's free to use for any purpose. If your project needs more advanced spatial analysis, custom workflows, or consulting support, Sagarmekhla GIS Consultancy offers professional GIS and remote sensing services.
Need something more complex than these tools handle? Our team provides professional GIS, remote sensing, and spatial analysis services for government, research, and industry.
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