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Collaborative Web Mapping

Simple editing and OSM-inspired collaboration for online geodata projects.

Screenshot of Contour map viewer.

Easy to use web Editor

Make manual edits to geo data without any special GIS tools.

Screenshot of Contour map viewer.

OSM-style changeset history and collaboration

Manage Contributor Access
Keep your projects private to selected collaborators, or open them up to public contributions for crowdsourcing projects.
Review Data Contributions
Consider incoming changesets before they merge.

History (5)

Current Version: 473637ac

4ae7ce68 Merged Jan 11, 2021

Upload US Cities 1/3

2ff5caf2 Merged Jan 11, 2021

Upload US Cities 2/3

8dcc09f7 Merged Jan 11, 2021

Upload US Cities 3/3

473637ac Pending Jan 16, 2021

Add New Zealand Cities

Ingest geo data

Upload data in common formats like GeoJSON and Shapefiles.

Uploads become reviewable changesets just like manual edits.

Use feature key and id matching to enable iterative "upsert" workflows.

Screenshot of Contour map viewer.

© 2021 Contour Email @worace