GeoJSON to WKT / WKB Converter
Convert geometries between GeoJSON, WKT and little-endian WKB hex.
Overview
Convert spatial geometries between GeoJSON, Well-Known Text (WKT) and Well-Known Binary (WKB) without leaving the browser. It auto-detects whether you pasted GeoJSON or WKT, supports the six core single- and multi-part geometry types, and emits little-endian WKB as a hex string suitable for PostGIS, SpatiaLite and other OGC-compliant stores. Useful for GIS developers, data engineers and anyone wrangling spatial columns.