GIS TOOLS LIBRARY

Professional GIS Tools, Built In-House

A growing library of free, browser-based GIS utilities from Sagarmekhla GIS Consultancy — coordinate conversion, spatial analysis, remote sensing and more, built to the same standards we use on client projects.

Coordinate Tools

Coordinate Converter DMS ↔ Decimal Degrees, plus free-form string parsing. Open →

DMS → Decimal Decimal → DMS Parse Coordinate String

Conversion Tools

KML Studio CSV, Excel, GeoJSON, Shapefile, or GeoPackage → styled KML/KMZ for Google Earth. Open →

GIS Format Converter Shapefile, GeoJSON, GeoPackage, CSV, KML/KMZ, DXF — any format to any other. Open →

Unit & Area Converter Acres, hectares, square feet, plus regional land units like Bigha and Biswa. Open →

Bulk CRS / Projection Converter Reproject an entire file to any EPSG code — searches the real EPSG registry. Open →

Vector Analysis

Vector Analysis Toolkit Buffer, clip, intersect, dissolve, and more — 15 spatial operations. Open →

Simple Buffer Buffer by Feature Multi-ring Buffer Centroid Convex Hull Simplify Dissolve / Merge Area / Length Calculator Clip Intersect Union Erase Spatial Join Nearest Feature Point-in-Polygon Count

Parcel Splitter Split a polygon into equal-area lots, fixed-width strips, or target-area lots. Open →

Network & Routing Analysis Shortest path and service area analysis along a line network. Open →

Survey Tools

Survey Tools Bearing & distance, traverse closure, area, chainage, and offset lines for field data. Open →

Bearing & Distance Traverse Calculator Area & Perimeter Chainage / Stationing Offset / Parallel Line

DEM & Remote Sensing

Raster Tools Terrain analysis from DEMs, and vegetation/water/urban indices from satellite imagery. Open →

Slope Aspect Hillshade Contour NDVI NDWI NDBI False Color Composite

Hydrology Tools Depression filling, flow direction/accumulation, stream network with Strahler order, and watershed delineation. Open →

Depression Filling Flow Direction Flow Accumulation Stream Extraction Stream Link Stream Order Stream to Feature Watershed Delineation

Hybrid LULC Classification Automatic K-means + NDVI/NDWI/NDBI classification, refined with your own samples — or build entirely new classes. Exports raster, vector, and a branded PDF report. Open →

Automatic Classification Refine Predefined Classes Add New Classes Sample Verification Auto-Digitization PDF Area Report

Mapping Tools

Mapping Tools View files on a map, pick coordinates, and measure distance and area. Open →

Map & Layer Viewer Coordinate Picker Measure Distance Measure Area

Map Layout Generator Compose a print-ready map with layers, precise scale, scale bar, and legend. Open →

GIS Data Editor

GIS Data Editor Draw, upload, and edit points, lines, and polygons — rename, add attributes, export to 7 formats. Open →

Draw Shapes Upload & Edit Files Rename Features Custom Attributes Fullscreen Mode

Vector Data Repair Detect and fix geometry errors — self-intersections, duplicates, invalid rings, and more. Open →

New tools are added regularly — check back, or tell us what you need.