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!

Upload Map!

Support Mapwarper.net

This server costs about €600 per year. Your donations help to keep it running.

So far for 2026 (Feb) there has been about €156 donated.
In 2025 you donated 80% of the server costs, many thanks!
Please Donate via Paypal

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!

News

Mapwarper.net emails improved
The Mapwarper.net server should be sending emails with the correct internals set up so they are less likely to end up in your spam inboxes now! For many weeks users... read more

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

Search for
Year

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Last Rectified Maps

Map Title Year Last Updated Status
P17208coll17 5130 full
Sanborn Insurance maps of Minneapolis, MN, 1930. Vol. 3, plate 255
2026 less than a minute ago 3 control points
New map of burlco 1859
Wall Map Showing Roads, buildings, and landholders' names. from Library of Congress, Geography and Map Division
2026 less than a minute ago 6 control points
Burlco map 1840s
From Library of Congress, Geography and Map Division. Shows township boundaries, place-names, roads, villages, mills, streams, houses, and householders' names. Covers areas south of the town of Mount Holly, indicated as Northampton, Southampton, Pemberton, and Washington townships.
2026 5 minutes ago 9 control points
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Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
83106 202401 02 2024 131 HKG
Compiled by Wright.one. Download KML
41 minutes ago 102 maps 100%
(102 maps)
6447 malaysia  kuala lumpur 63.36k 94 master Malaysia L7010 series (1960s)
Compiled by Zh9567. Download KML
about 3 hours ago 13 maps 100%
(13 maps)
Statistisktopogr01trap 0650 København Copenhagen, kort i større målestok
Trap, J.P. Statistisk-topographisk beskrivelse af kongeriget Danmark. 1872-1879 Compiled by jonls. Links: Source / Biblio Ref Download KML
1879 about 9 hours ago 24 maps 100%
(24 maps)
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