Geo Transform — Professional GIS & Transform/Convert Coordinates Tool
Geo Transform Coordinates Transformer is the ultimate mobile coordinate reference system transformation, local-to-grid calibration, and spatial data inspection tool designed for GIS professionals, land surveyors, civil engineers, and mapping enthusiasts.
Effortlessly reproject single coordinates, bulk datasets, CSV files, or local construction grid planes between thousands of official spatial reference systems — complete with offline search, interactive map previews, persistent mode workspaces, and industrial-grade GIS data export options.
KEY FEATURES
7,000+ Official Reference Systems (100% Offline)
• Embedded EPSG Database: Complete offline database containing over 7,000 spatial reference systems (WGS 84, PRS92, UTM zones, NAD83, ETRS89, regional grid projections, and custom datums). • Instant Smart Search: Search instantly by location name (e.g., Philippines, Manila, California), EPSG code (e.g., 3123, 4326, 3857), or projection parameters. • Favorite & Starred Systems: Star your most frequently used CRS definitions for instant one-tap access. • Quick Category Filters: One-tap shortcuts for frequently used regional datums and projections. • UTM Zone Builder: Generate precise Universal Transverse Mercator zone projections across WGS84, NAD83, and ETRS89 datums.
Flexible Coordinate Input & Workspace Modes
• Persistent Active Workspaces: Seamlessly switch between Single Point, Bulk Batch, and Local-Grid Studio modes. Your active workspace mode is saved automatically, isolating datasets on the map so only the data you are currently working on is retrieved and re-projected. • Single Point Entry: Dedicated manual input panel with automatic unit detection (Easting/Northing in meters vs. Longitude/Latitude in degrees) and real-time shift vector delta calculations. • Bulk Text Parsing & Batch Import: Load or paste multi-line coordinate text in X, Y, Y, X, ID, X, Y, or ID, X, Y, Z format with automatic header detection and customizable column roles. • CSV & Delimited File Import: Load .csv, .txt, or .tsv files with interactive column assignment (Easting/Northing, Elevation, Point ID/Name). • Seamless Text Sync: Imported CSV datasets are automatically populated into the bulk text editor for instant tweaking and re-calculation.
Local Plane to Grid Studio (Calibration & Transformation)
• 1-Point Reference Mode: Transform local site survey coordinates to official national grid coordinates using Combined Scale Factor (CSF), origin height, and rotation angle $\theta$. Includes auto-computation of CSF from orthometric/ellipsoidal height. • 2-Point Calibration Mode: Derive exact 2D similarity parameters (derived scale factor $s$ and rotation angle $\theta$) from two known control point pairs (Grid vs. Local) and transform local coordinates into official grid coordinates. • Add to Active Dataset: One-tap full-width buttons to add transformed local points directly into active dataset memory for map preview and export.
• CSV Table Export: Export source, transformed target, and WGS84 geographic coordinates with customized column headers. • KML Export: Direct Google Earth format export with interactive placemarks, coordinate attributes, and altitude tags. • ESRI Shapefile (.zip): Export complete GIS Shapefiles (.shp, .shx, .dbf, .prj) with verified ESRI WKT spatial reference definition files.