Map Warper

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New Uploads disabled. Sorry, Please be patient. will be moving to new server before Dec!
To help free up space, I removed a few files, so you may need to re-rectify (and/or crop) a map if you can't see it in the maps Preview tab.
Also a few maps which were old, untouched and never rectified, with no points on them and without belonging to a mosaic were removed, so you might need to re-upload.


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!

Upload Map!

What is it?

It's a free to use, open source map warper / map georectifier, and image georeferencer tool for individuals and small groups. Developed, hosted and maintained by Tim Waters. If you like this project, please consider donating to keep the project going.

Mail me at for more information!


Internationalization (i18n) and Translations for Mapwarper. (English, Dutch, Japanese)
Many thanks to Ellen Gehring of Erfgoed Leiden en Omstreken for the Dutch translations. Ellen with the ELO wanted their own warper and because of this, support for locales, internationalisation and... read more

New shortcuts and add layer features in has been updated with several months of the latest code. Some of these features are directed towards the rectify map interface with the addition of keyboard shortcuts and the... read more

What’s coming to – new stuff! is getting an upgrade of code early this first week in April. New things: Keyboard shortcuts New JSON-API and docs Map caching for faster maps Bigger map windows Upgraded... read more

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Last Rectified Maps

Map Title Year Last Updated Status
1923 am000316 polonia detail
2 days ago 52 control points
2 days ago 6 control points
Wazemmes 1855
Arrondissement de Lille et villes de Lille, Wazemmes, Armentières, Tourcoing et Roubaix / dressés... par A. Heurley
1855 2 days ago 7 control points
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Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
36csw191707b Western Front 1917 07
Western Front in The Great War, as close to July 1917 as could be found. Please contact if missing maps found and available for use here. Maps sources: McMaster University depository of maps Under Creative Commons license. Compiled by Fed. Links: Source / Biblio Ref Download KML
1917 6 days ago 53 maps 100%
(53 maps)
Missing PNG Gology Map 1972
PNG Gology Map 1972 Compiled by Demian.
8 days ago 0 maps 0%
(0 maps)
1820 cartwright   sing sing and sparta 1   levels Sing Sing and Sparta 1820
Compiled by jforjacob. Download KML
1820 15 days ago 2 maps 100%
(2 maps)
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Create a new mosaic