Open, fix, and convert geospatial data—fast.
Inspect GeoJSON, KML, Shapefiles, CSV, WKT, and TopoJSON on an interactive OpenStreetMap map. Start without an account or installation.
Drop a geospatial file here
GeoJSON, KML, CSV, WKT, TopoJSON, or a zipped Shapefile. Processed locally in your browser.
From broken file to usable map
A focused toolkit for the annoying geospatial tasks that should not require desktop GIS.
Validate
Catch malformed JSON, unsupported roots, unclosed polygon rings, and invalid coordinates.
Repair
Normalize Features into a FeatureCollection and safely close polygon rings.
Convert
Move between common web-mapping formats without installing command-line tools.
Share & remix
Publish a read-only map, embed it, or open a copy back in the editor.
Free tools for specific jobs
Open the exact workflow you need. Every tool runs without an account.
Free for quick work. Pro for repeat workflows.
Browser tools stay free without an account. Create a free account to save one project. Upgrade to Pro when you need unlimited conversions, more cloud projects, and multi-format export—not a bigger browser file size.
Quick convert, validate, and edit in the browser
- No account required for tools & local editor
- 10 cloud conversions/month with a free account
- Up to ~10MB per file (browser practical limit) · 1 saved project
- GeoJSON export
- Public share links (with GeoJSON Cloud credit)
For people who live in geospatial files
- Unlimited conversions
- 100 cloud-saved projects
- KML, CSV, WKT, TopoJSON & Shapefile export
- Unbranded public share & embed maps
- Private project workflow + email support
- Same ~10MB browser file ceiling as Free (honest for map performance)
Need programmatic API access, custom limits, or a map product built into your software?