← geodebug.io

GeoJSON Viewer, Editor & Validator

A GeoJSON viewer, editor, validator, and on-map drawing tool. Fetch from a URL or paste inline; explore features, fix invalid geometries, and export valid GeoJSON.

Open the GeoJSON debugger →

More content coming soon

This is a Phase 1.1 placeholder. The next iteration will include a “What is GeoJSON” explainer, sample endpoints, the most common errors with fixes, an FAQ, and embedded usage of the tool itself. Until then, click the button above to use the GeoJSON debugger directly.

geodebug.io — Debug map URLs on a map

Free developer tool for debugging map services. Paste a WMS, WMTS, XYZ, PMTiles, TileJSON, OGC API Features, or GeoJSON URL and see headers, capabilities, errors, and the rendered layer instantly.

Supported protocols

WMS — GetCapabilities parser, layer + CRS picker, transparent overlay rendering
WMTS — KVP and REST modes with TileMatrixSet detection
XYZ / TMS — raster and vector tiles with raw fetch testing
PMTiles — header inspector, metadata viewer, vector + raster preview
TileJSON — auto-detect raster or vector and render
OGC API Features — collection browser and item loader
GeoJSON — viewer, editor, and on-map drawing
OGC 3D Tiles — tileset.json + Cesium Ion

geodebug.io requires JavaScript. Enable JavaScript to use the tool.