Free Online GIS Tools
One file to fix. One map to make.
Find the right tool and get it done.
Local files stay on your device. No account needed.
A good place to start
Everyday tools for a quick GIS task.
Coordinate Converter
Convert decimal degrees, DMS, UTM and MGRS coordinates, then check their position.
GIS File Converter
Choose an input and output format, preview your data, and download the converted file.
Measure Distance
Draw a route or path and measure its geodesic distance on a map.
Merge KML
Combine several KML files into one, keeping each source in its own folder.
World Trade Map 2024
Explore 16,000+ bilateral trade routes and applied tariffs on a 3D map built from BACI CEPII and World Bank data.
Find County by Location
Look up county boundaries, FIPS and ACS estimates from map coordinates.
Map CSV by County
Join CSV values to county FIPS, inspect diagnostics and export a choropleth with a legend.
Population Within a Radius
Sum whole-ZCTA ACS population and housing estimates selected by reference points inside a radius.
Road Network Isochrones
Generate actual driving, walking or cycling reachability polygons for multiple time limits.
ZIP / ZCTA Point Distance
Measure great-circle distance between two official Census ZCTA representative points.
Crop, Extract Band & Resample Raster
Prepare a GeoTIFF or ASCII grid, preserve numeric values and georeferencing, then continue terrain analysis.
Find Points Within a Radius
Find local point features within a radius and export distances, records and a circle boundary.
Find Cities Within a Radius
Query bundled Natural Earth major cities and selected places by country and distance.
Find ZCTA / ZIP Reference Points in Radius
Find official Census ZCTA representative points near a location; export the matched statistical areas and distances.
Filter & Select Features
Filter typed attributes and select map or table records; export only the chosen matching subset.
Download GIS Web Services
Read public ArcGIS, OGC API Features or WFS layers, filter a query and download GeoJSON with a completeness report.
Coordinate Converter
Convert decimal degrees, DMS, UTM and MGRS coordinates, then check their position.
GIS File Converter
Choose an input and output format, preview your data, and download the converted file.
Measure Distance
Draw a route or path and measure its geodesic distance on a map.
Create a Map
Turn a GIS file into a styled map, then download a map image or GeoJSON.
Add Area & Length Fields
Add geodesic area and line length to your dataset without overwriting existing attributes.
Generate Centroid Points
Turn feature vertices into centroid points while keeping feature attributes.
Generate Feature Bounds
Export a bounding shape for each feature or a single extent for the whole dataset.
Intersect Polygon Layers
Find shared polygon areas and retain attributes from both datasets.
Clip Polygons by Mask
Keep the part of each source polygon inside a polygon mask, without duplicating overlapping mask areas.
Erase Polygon Areas
Subtract exclusion zones from polygons and keep the remaining areas.
Edit Feature Attributes
Edit attribute values, add or rename fields, and remove unwanted columns before sharing a GIS dataset.
Repair Geometry
Fix supported coordinate and ring problems and inspect the remaining issues before exporting.
Check Geometry & Topology
Locate supported geometry issues before a polygon overlay or a data handoff.
Split Dataset by Attribute
Turn a mixed dataset into separate files for each attribute value.
Elevation Profile from DEM
Sample terrain along a route and export elevation against distance.
Slope & Aspect from DEM
Calculate terrain steepness and downslope direction from an elevation grid.
Raster Statistics
Summarize valid raster values and inspect the distribution without uploading a GeoTIFF.
DEM Viewshed
Estimate which terrain cells are visible from an observer using a local DEM.
D8 Flow & Watershed
Compute downslope flow accumulation and the cells draining to a chosen outlet.
Merge KML
Combine several KML files into one, keeping each source in its own folder.
Split KML by Folder
Separate top-level folders into KML files, with shared styles and unfiled features retained.
Simplify KML
Reduce line and polygon vertices with an adjustable tolerance and compare the result.
Remove Duplicate Points
Remove exact duplicate KML points and keep the first placemark and its attributes.
Remove KML Styles
Strip style definitions and references while keeping geometry and attributes.
KML to KMZ
Package a KML document as the single-file KMZ archive Google Earth expects.
Compress KML to KMZ
Shrink a large KML file into KMZ and compare the byte size before and after.
KMZ to KML
Extract KML documents and bundled images; keep archive paths in a ZIP download.
Clean CSV & Excel Coordinates
Map your columns, parse decimal or DMS coordinates, and export accepted points to KML.
Dissolve Polygons
Remove internal polygon boundaries, optionally grouping by a shared attribute.
Geometry Buffer
Create a distance zone around points, lines or polygons, including polygon insets.
GeoJSON Validator
Check GeoJSON structure and get useful errors before you publish or convert it.
CRS / SRS Detector
Inspect a GIS file for coordinate reference system and projection metadata.
EPSG Converter
Transform coordinates between EPSG codes, including WGS 84, Web Mercator and UTM.
UTM Zone Finder
Find the UTM zone and corresponding EPSG code for a latitude and longitude.
Bounding Box Tool
Draw or enter a map extent and export it as GeoJSON, WKT or a map URL.
GPS File Converter
Convert GPS tracks between GPX, FIT, IGC and GeoJSON in your browser.
Geotag Photos
View photo locations and edit EXIF GPS in up to five photos, keeping the original formats.
GeoJSON Draw Tool
Draw points, lines, polygons and arrows, then export your features as GeoJSON.
Printable Blank Maps
Customize world, continent, country and US state maps; download SVG, PNG or PDF.
Map with ZIP Codes
Paste US ZIP codes and values to create a county map of sales, leads or coverage.
Measure Area
Draw a polygon and calculate its area for a field, parcel or region.
Radius Map
Draw a circle around a location and compare its distance and area.
Driving Radius Map
See how far you can drive from a city within a chosen travel time.
Elevation Finder
Click a location on the map to read its estimated elevation in meters.
Map Tile Calculator
Estimate tile counts and storage for a bounding box and zoom range.
OSM Layer Download
Choose an area and download roads, buildings or waterways from OpenStreetMap.
Satellite Imagery Download
Search Sentinel-2 scenes by area, date and cloud cover; preview and download COG imagery.
Landsat 8/9 Download
Find Landsat Collection 2 scenes and download 30 m natural-color or infrared GeoTIFFs.
Cities & Towns Download
Choose a country and download selected Natural Earth cities and towns as GeoJSON.
Download Boundaries
Choose a country and administrative level, preview the boundary, and download GeoJSON.
US States Boundaries
Preview and download the 50 US states and territories, or explore county boundaries.
Sunrise & Sunset Calculator
Find local sunrise, sunset, day length, golden hour and twilight for a city, coordinate and date.
Sun Position Calculator
Check solar azimuth, elevation and shadow direction at a chosen local date and time.
Moon Phase Calendar
See tonight’s Moon, a clickable monthly calendar, illumination and upcoming major phase estimates.
Moon Position Map
Find the Moon’s direction, altitude, moonrise and moonset for your location and time.
Day and Night Map
See the live night side of Earth, the terminator and the point directly beneath the Sun.
Antipode Finder
Find the opposite point on Earth from a city or GPS coordinate and compare surface and through-Earth distances.
Bearing Calculator
Calculate the initial true-north compass bearing and great-circle distance between two places.
As the Crow Flies Distance
Measure the shortest surface distance between two cities or GPS points in kilometres and miles.
Halfway Between Two Places
Find the geographic halfway point on the shortest surface route between two places.
Horizon Distance Calculator
Estimate how far you can see from an eye height, tower or hill, in kilometres and miles.
Geographic Center Finder
Find a country or US state’s area-weighted center, or the equal-weight center of multiple selected places.
Building Shadows Map
Adjust the sun position to explore 3D building shadows around the world.
Current Location & Weather
Find your GPS position, nearby address and local weather on a map.
World Time Zones
Explore the world’s time zones and compare the current local times.
World Flags Map
Explore country flags, ISO codes, continents and populations on a world map.
OpenClaw Exposure Map
Explore the OpenClaw coastal tsunami and storm-surge exposure map.
KML to GeoJSON
Prepare Google Earth features for Leaflet, MapLibre and GIS APIs.
Shapefile to GeoJSON
Turn a complete SHP package into a web-friendly feature collection.
GeoJSON to Shapefile
Export a SHP, SHX and DBF package for desktop GIS and data portals.
CSV to KML
Turn a table of longitude and latitude coordinates into Google Earth points.
Excel to KML
Convert an XLSX coordinate table to a KML point layer.
GPX to KML
Move GPS tracks, routes and waypoints into a Google Earth workflow.
No tools match those filters
Try a format such as KML, a simpler task, or clear the filters to see everything.
Start with the file you have
Explore a format’s viewers, guides and conversion workflows.
A quick task, without a full GIS setup.
Use these tools alongside Studio to inspect, prepare and share geospatial data. Need another output format? The conversion directory has all supported pairs.
Know where processing happens
Local file tools read and process files on your device. Opening a basemap, searching for a place or downloading imagery can contact external services. Check each tool’s limits before sharing an output.
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