Map and coordinate tools
Free online tools for travellers and geography lovers — open in a browser, nothing to install.
Coordinate converterConvert between WGS84, GCJ02 and BD09 — the fix for the China map offset problem.Coordinate format converterConvert between decimal degrees (DD), degrees-minutes (DM) and degrees-minutes-seconds (DMS); the input format is detected automatically.Distance calculatorGreat-circle distance between two points on Earth, plus the initial bearing.
More tools in development
Coordinate picking, location sharing and projection calculators are on the way.