Free Online GIS Tools
Coordinate conversion, elevation, slope and contours, GIS file conversion, ArcGIS service inspection and spatial analysis. Built by the GIS team at Rodosto Teknoloji, the tools run in your browser and are free to use.
69 tools · 7 categories
Your files are processed in your browser and are not uploaded to our server. Data sources
Who it is for
Who it is for
Who it is for
Who it is for
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Location and Terrain
Elevation FinderLook up elevation (height above sea level) on the map
My Location & ElevationYour coordinates + elevation + UTM/MGRS
Distance CalculatorDistance between two points on the map (km, mi, m)
Area CalculatorPolygon area: m², hectare, acre
Slope MapSlope map, slope classes and point-to-point gradient for any area
Contour Lines → DXFContours for a drawn area, DXF in UTM or TM coordinates
Elevation ProfileElevation along a line, long section DXF and CSV
Cut and Fill CalculatorEarthwork, stockpile and before/after volumes from survey points (TIN)
Viewshed and Line of SightVisible area from a point, radio link and Fresnel zone
Sun Position and Panel TiltSun angle, sunrise and sunset, shadow length, solar panel tilt
Photo Location FinderRead EXIF GPS from photos and see where they were taken
Geocoding ToolAddress ↔ coordinates (forward/reverse geocoding)
Coordinates and Surveying
Coordinate ConverterWGS84, UTM, ITRF, ED50, conversion between 30+ systems
Batch Coordinate ConverterConvert Excel/CSV coordinate lists between systems
UTM to Lat Long ConverterUTM ↔ lat/long (auto zone)
ED50 ↔ WGS84 DatumDatum conversion (ED50 / WGS84)
GPS Format ConverterConvert between DMS, decimal degrees, UTM and MGRS
DMS ↔ Decimal DegreesConvert between degrees-minutes-seconds and decimal
MGRS ConverterLat/Long ↔ MGRS (military grid)
Plus Codes ConverterConvert lat/lon to a Google Plus Code and back
SK-42 ↔ WGS84 ConverterConvert Pulkovo 1942 and Gauss-Krüger coordinates to WGS84
EPSG Code FinderFind the EPSG code from a coordinate system name
UTM Zone FinderFind the correct UTM zone for a location
Map Sheet Finder (Türkiye)Türkiye map sheet names from 1:250,000 to 1:500 with corners
Azimuth CalculatorAzimuth, distance and polar traverse, gon/degrees
Parcel Area & SubdivisionGauss area and edge-parallel subdivision pre-check
Magnetic DeclinationMagnetic declination with WMM2025, grid convergence and bearings
Area Unit ConverterConvert between dönüm, m², hectares and acres
ArcGIS Tools
File Converters
GIS File ConverterBatch convert SHP, KML, GPX, GeoJSON, GeoPackage and DXF
DXF to KML, KMZ, SHP, GeoJSONConvert DXF drawings to KML, shapefile and GeoJSON with reprojection
Shapefile CreatorGeoJSON, KML, GPX, Excel → SHP with .prj and encoding
Shapefile → GeoJSONConvert a SHP/ZIP file to GeoJSON
Excel/CSV → KML (Google Earth)Turn a coordinate list into a Google Earth file
File CRS ConverterReproject Shapefile, GeoJSON, KML and CSV files
Geometry SimplifierReduce vertices and file size of GeoJSON and Shapefile
Coordinate List / KML → DXFConvert point lists (NCN, TXT, CSV) and KML/KMZ to DXF
DWG → DXFConvert AutoCAD DWG to DXF in the browser
GeoJSON → DXF (CAD)Bring map data into AutoCAD, meter systems + layers
GeoJSON → KML/KMZExport GeoJSON to Google Earth format
GeoJSON → CSVExport attributes to a CSV/TSV table
CSV → GeoJSONConvert a CSV with coordinate columns to GeoJSON
Excel → GeoJSONConvert XLSX spreadsheet coordinates to a map
GPX → GeoJSONConvert GPS tracks (GPX) to GeoJSON
WKT ConverterWKT ↔ GeoJSON conversion
GeoJSON FormatterFormat, validate and minify GeoJSON
GeoJSON ValidatorFind and auto-fix geometry errors per RFC 7946
Spatial Analysis
Geoprocessing ToolboxClip, dissolve, merge, intersect, buffer and grid for shapefiles online
Choropleth Map MakerThematic map from Excel with name matching, classes and PNG or SVG export
Heatmap and Hexbin MapHeatmap and hexagon density from Excel/CSV points
Count Points in PolygonsWhich point falls in which area: counts and spatial join
H3, Geohash and Tile ConverterCoordinate ↔ H3 cell, geohash, XYZ tile and quadkey
Buffer AnalysisCreate meter/km buffers around points or GeoJSON
Bounding Box ToolSelect an area to generate bounding box coordinates
Color Palette GeneratorColor palettes for thematic/choropleth maps
Data and Imagery
Turkey Administrative Boundaries81 provinces, 973 districts as SHP, GeoJSON, KML, DXF, CSV
OpenStreetMap Data DownloaderBuildings, roads, water and POIs to SHP, DXF, KML, GeoJSON
Historical Satellite ImageryCompare old satellite images by year with a swipe or side by side
NDVI Map (Sentinel-2)Draw a field and calculate NDVI from Sentinel-2 with a time series chart
Viewers and Design
Map ViewerOpen Shapefile, GeoJSON, KML/GPX files in your browser
GeoJSON EditorDraw and edit on a map, measure, export to KML, SHP or DXF
KML/KMZ ViewerView Google Earth data and convert it to GeoJSON
GeoTIFF ViewerOpen TIF, COG and DEM files on a map, read pixel values
GeoPackage (GPKG) ViewerView GPKG layers and attributes, export GeoJSON
Print Map to Scale (PDF)Export a map at true scale to PDF or PNG, A4 to A0, with grid
DXF ViewerOpen AutoCAD DXF drawings in the browser
LAS Point Cloud ViewerView LiDAR point clouds (LAS) in 3D by RGB, elevation or class
Floor Plan MakerDraw walls and rooms, 3D with sun and shadow, zoning check, cost estimate
Free GIS tools by RODOSTO
These tools are built by the team at Rodosto Teknoloji, a GIS software and consulting company based in İzmit, Türkiye. They cover everyday tasks for surveyors, GIS professionals and anyone working with location data, from coordinate conversion and elevation lookup to file conversion and area calculation.
In tools that open files, your data is processed on your device. The services used for maps, elevation and geocoding are listed on the Data Sources and Licenses page.
Beyond the tools: enterprise GIS.
The team behind these tools builds ArcGIS-based enterprise GIS platforms for municipalities, public agencies and companies.