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
F u 04  uso y ocupaci%c3%b3n del suelo urbano
2026 39 minutes ago 4 control points
Atlas van der hagen kw1049b11 004 a new map of the kingdome of england 2c representing the princedome of wales 2c and other provinces 2c cities 2c market towns 2c with the roads from town to town bynedjvq
contemporary map in 1685
2026 about 1 hour ago 347 control points
3705003
2026 about 3 hours ago 6 control points
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Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
Iiif service gmd gmd384m g3844m g3844rm g3844rm g036491960 03649 1960 0004 full pct 25 0 default Rockville 1949 - 1960
Compiled by Nick Mole. Download KML
about 4 hours ago 3 maps 100%
(3 maps)
1 1 pzt obwodnica namys%c5%82owa pw zadanie 1 DW451 Obwodnica Namysłowa
PW Compiled by Fasha4. Download KML
2025 about 7 hours ago 8 maps 100%
(8 maps)
1912topo downtown Cincinnati topographic survey of 1912
City of Cincinnati topographic survey of 1912. Hugh C. Mitchell, engineer-in-charge ; triangulation, E.D. Bromley and M.E. McChristie ; precise levels, C.W. Cummings ; principal traverse, C.S. Earnshaw ; topography, W.N. Brown and R.H. Randall of Brown & Clarkson ; office, R.I. Develin and E.B. Abbett. Edition of 1914. Compiled by Hayleox. Links: Source / Biblio Ref Download KML
1912 1 day ago 48 maps 63%
(30 maps)
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