Free Online Map Viewer & Geospatial Data Visualizer
DudeMap is a fast and modern online map viewer.
Upload geospatial files — GeoJSON, Shapefile, FlatGeobuf, KML, GPX, CSV — and view them instantly
on an interactive map.
No installation. No signup. Just upload and explore.
Supported Map & Geospatial Formats
GeoJSON (.geojson)
Shapefile (.shp inside .zip)
FlatGeobuf (.fgb)
KML / KMZ
GPX
CSV (lat/lng)
WKT / WKB (coming soon)
Features
Instant rendering of polygons, lines, and points
Interactive base maps powered by MapLibre & deck.gl
Attribute table viewer (coming soon)
Spatial tools: buffer, nearest point, measure distance
Coordinate conversion (EPSG:3857 ↔ EPSG:4326)
Export processed data to GeoJSON
Why People Use DudeMap
Simple for beginners. Powerful for pros.
A clean, fast, web-based map viewer you can access from any device.
