Free local tool

WKT Viewer

Parse, inspect, and preview bounded 2D Well-Known Text geometry locally without maps or network requests.

Private by design: your input stays in this browser tab. This tool sends no input to a server and stores nothing after the page closes.

JavaScript is required for the interactive tool.

Method and limits

Supports 2D POINT, LINESTRING, POLYGON, MULTI geometries, GEOMETRYCOLLECTION, and EMPTY with up to 1 MB, 50,000 coordinates, and ten collection levels. It validates basic syntax, line lengths, and closed polygon rings. It does not support EWKT/SRID, Z/M dimensions, CRS transformation, maps, reprojection, or complete topological validation.