Start free

Georeferencer

Put scanned maps and drone photos on the map.

A lot of useful geography lives in pictures: an old survey, an architect's site plan, a drone photo without a world file. Upload it, click matching points on the image and on the map, and publish raster tiles that sit under your live vector layers.

Start free Georeferenced maps in the docs

What you get

  • Any image you have

    PNG, JPEG, TIFF, WebP, JPEG 2000, GIF or BMP, up to 200 MB and 400 megapixels.

  • See the fit as you go

    After three points the image appears as an overlay. Every point shows its error in metres on the ground, graded against the median, so a mistyped point stands out.

  • The right transform

    Affine for scans that are only shifted, rotated and scaled; polynomial for older or warped paper; thin-plate spline to bend the image through every point.

  • Crop the margins

    Draw around the map itself and leave the legend, title block and scanner edge out of the tiles.

  • Published with GDAL

    Warped to Web Mercator, written as a Cloud-Optimized GeoTIFF you can download, and cut into raster tiles with a TileJSON URL.

  • Same keys, same map

    Raster tiles work with any key of the project and count as tile requests, like your vector tiles.

Try it

Copy this, swap in a key from your project, and run it.

Add it under your data
map.addSource("survey-1962", {
  type: "raster",
  url: "https://tiles.mapsocket.com/t/georef/7f3c2a90-….json?key=pk_live_…",
  tileSize: 256,
});
map.addLayer({ id: "survey-1962", type: "raster", source: "survey-1962" }, "parcels");

On each plan

SandboxStarterProEnterprise
Georeferenced maps 110100Unlimited

Full limits and prices on the pricing page.

Good to know

  • Georeferencing happens in the dashboard. There's no API for uploading and placing points yet.

Read more

Also in every MapSocket project

Start free Free Sandbox, no card needed.