Map Warper

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Find maps and other imagery, upload, and rectify against a real map.

You can then download and use the rectified map in your mapping applications.

Just sign up and you can start uploading and get warping!

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What is it?

It's a free to use, open source map warper / map georectifier, and image georeferencer tool. Developed, hosted and maintained by Tim Waters. This project is supported by Topomancy LLC and the New York Public Library.

Mail me at for more information!


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Last Rectified Maps

Map Title Last modified Status
This is a map of a city in Virginia, Richmond.
about 15 hours ago. 11 control points.
Will figure out later
about 16 hours ago. 4 control points.
about 17 hours ago. 14 control points.
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Recent Layers

Layer Title Year Number of Maps Percentage Complete
1874_atlas_of_east_boston_chelsea_revere_and_winthrop_plate_f 1874 East Boston Chelsea Revere and Winthrop - Hopkins Atlas 00m108
Compiled by Mapjunction. Last modified about 18 hours ago. Depicts : 1874 Links: Source / Biblio Ref Download KML
1874 13 maps 100%
(13 maps)
Rgb_dub-7-1837-1937-1948-ballyboghil BrianH 6inch
Compiled by Brian Hollinshead. Last modified about 18 hours ago. Depicts : Links: Source / Biblio Ref Download KML
26 maps 92%
(24 maps)
13276_13280_3424_3428_12 admin boundary
Compiled by etajin. Last modified 1 day ago. Depicts : Links: Source / Biblio Ref Download KML
64 maps 100%
(64 maps)
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