Earth & Space Coordinate Tools
Free online tools for coordinate conversion, GeoJSON visualization, satellite tracking, and orbit analysis. Supporting 120+ coordinate systems and CCSDS data formats.
Earth Tools
Geographic coordinate conversion, GeoJSON visualization, and data export tools
View GeoJSON
Visualize GeoJSON files on an interactive map with layer controls
Convert Point Coordinates
Transform coordinates between 120+ coordinate systems including UTM, WGS84, and more
Convert GeoJSON Coordinates
Batch transform all coordinates in a GeoJSON file to a different CRS
GeoJSON to CSV
Export GeoJSON features as CSV with coordinates and properties
Space Tools
Satellite tracking, orbit visualization, and space coordinate conversions
Satellite Ground Track
Visualize satellite ground tracks with 3D globe visualization
Reference Frame Converter
Transform between ECI, ECEF, and Geodetic coordinate frames
Orbit Viewer
Parse TLE/OMM data and visualize orbital paths on a 3D globe
TLE to OMM Converter
Convert between TLE and OMM (KVN, XML) orbital data formats
Why coordinates.online?
Fast & Free
All computations run in your browser. No data is sent to servers, ensuring privacy and speed.
120+ Coordinate Systems
Support for UTM zones, national grids, and custom EPSG codes fetched from epsg.io.
CCSDS Standards
Full support for TLE, Alpha-5, OMM, OEM, and OCM orbital data formats.