Match old maps to the real world!

Use our online tool to assign the geographical location to your scanned image.

Georeferencer main features

Present your maps in an exciting interactive form to visitors of your websites or exhibitions. All of these visualizations are available for each scanned map you process with Georeferencer.




Spy glass


3D view

Once your maps have been matched against their geographic locations, your whole map collection suddenly becomes geographically searchable. Searching by location offers a new way of discovery.

OldMapsOnline search engine

Make your maps widely known! The OldMapsOnline is a popular search engine with a huge number of visitors and a prominent position in Google search results. Your maps can be part of these search results, boosting the number of visits and awareness of your map collection. You can prove it with the quantitative analytics we provide.

Geosearch directly for your maps

Together with the Georeferencer, each institution receives a customized geographical search application for their own map collection. This can be integrated into the web or presented to visitors.

Comparing maps with Compare & Overlay

Work with two or more maps together, stack the maps in a pile, discover nearby maps and bookmark your favorites. Adjust transparency to compare the maps with each other or with the familiar road map below.
Study the evolution of a place of your choice across different time periods.

Exports for GIS and library catalog

Georeferencer platform fully supports popular standardized protocols and formats. The provided map services are compatible with the Web Map Tile Service (OGC WMTS). High-resolution images are displayed via International Image Interoperability Framework (IIIF). The individual maps can be exported in the form of GeoTIFF files. The library catalog records can be enriched with geographic information improving the discoverability of the maps.

Online crowdsourcing, editing & control

Engage with your online visitors and ask them to help you to find the correct location of your scanned maps. Let general public, lecturers, researchers and students give your maps the second life. Use the progress bar displays, top contributors and other widgets to see the progress of your project.

Wide range of functions

Visual or coordinate-based input of reference points, border-clipping, automatic rotation of non-north oriented maps, multiple base maps, map insets, swipe view, 3D view, etc.