Map Warper

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Overview

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 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 tim@geothings.net for more information!

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News

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 mapwarper.net
Mapwarper.net 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 Mapwarper.net – new stuff!
Mapwarper.net 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
1zc3760140060
tile from 1952 USGS aerial pass over eastern upstate NY (In 1 layer)
1952 about 2 hours ago 3 control points
Historical map test
2025 about 2 hours ago 11 control points
1zc3760140059
tile from 1952 USGS aerial pass over eastern upstate NY (In 1 layer)
1952 about 3 hours ago 3 control points
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Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
1zc3760090471 upstate NY, 1952 Aerial
imagery from a 1952 Aerial Imagery Pass from USGS earth explorer Compiled by Richard Welty. Download KML
1952 about 2 hours ago 219 maps 100%
(219 maps)
Missing EIA Terminal
Compiled by TSinMW.
2025 1 day ago 0 maps 0%
(0 maps)
Alg%c3%a9rie 19   la calle La Calle Nefza
Cartes de Tunisie et Algérie par le Service géographique de l'Armée française de 1890 à 1936. Numérisées par l'université Bordeaux-Montaigne (FR), "1886, collections patrimoniales numérisées" Compiled by IBLA-ML. Links: Source / Biblio Ref Download KML
4 days ago 2 maps 100%
(2 maps)
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