Free browser-based coordinate converter and map tool. Paste or upload coordinates in any format including Decimal Degrees, DMS, UTM, MGRS, UK Grid References and Easting/Northing. Auto-detects formats, even messy ones. Draw points, lines and polygons, group locations, and export to CSV, KML or DXF. Full OSGB36/WGS84 support for UK surveyors, planners and GIS professionals. No account needed. No limits. Completely free.

Wispr Flow: Dictation That Works Everywhere — Stop typing. Start speaking. 4x faster.

Stop typing. Start speaking. 4x faster.

Hi all! 👋 I’m the creator of Coordinate Mapper. I built it after repeatedly needing a quick way to convert and check coordinates without opening heavy GIS software. What started as a simple converter slowly turned into a full browser-based tool for working with coordinate data. With CoordinateMapper you can: • Convert between multiple coordinate formats • Paste bulk coordinates or upload files • Automatically detect formats, even when the formatting is messy • Visualise everything on an interactive map • Draw points, lines, and polygons • Export results to formats like CSV, KML, and DXF The goal is to make everyday coordinate tasks faster and easier for anyone working with location data. I’d love to hear your thoughts: • Are there features you wish existed in tools like this? • Any workflows you’d like to see supported? Thanks for checking it out!

Wispr Flow: Dictation That Works Everywhere — Stop typing. Start speaking. 4x faster.

Stop typing. Start speaking. 4x faster.

Coordinate Mapper

Convert, map, and export coordinates in your browser

Convert, map, and export coordinates in your browser