Datum Converter

About This Tool

This tool converts coordinates between geodetic datums and CRSs used in GIS data processing. It targets GIS analysts, cartographers, and data stewards who prepare data for analysis, sharing, or publication, ensuring positional integrity across diverse datasets. By treating each input feature as a record to transform, the system maintains data integrity across formats and platforms without requiring local GIS software installation.
Conceptually, the tool reads coordinates, determines the transformation path, applies the appropriate parameter set (three-parameter Helmert for simple shifts or grid-based methods for higher precision), and emits coordinates in the target datum. It supports batch processing and preserves non-spatial attributes for seamless downstream use.
The primary value lies in interoperability and QA: reducing re-projection errors, improving reproducibility across teams, and enabling straightforward import/export of CSV and GeoJSON data for cross-software workflows. Core features include predefined EPSG-based transformations, per-record error reporting, unit handling, and provenance logs; advanced options allow parameter overrides when needed. Typical use cases include survey data alignment, environmental modeling, and asset inventories for planning and analysis.

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