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 2025 as of 22 Aug there has been about €376 donated. We've passed the halfway mark, thank you! 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!

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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

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Year

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Last Rectified Maps

Map Title Year Last Updated Status
Obraz 2025 10 10 000749766
(In 1 layer)
2025 17 minutes ago 9 control points
Maps sanborn denver 1929 vol1 009
Denver 1929 Sanborn volume 1, sheet 9 (In 1 layer)
1929 29 minutes ago 4 control points
Administrative division of the polish lithuanian commonwealth in 1764
(In 1 layer)
2025 39 minutes ago 11 control points
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Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
Administrative division of the polish lithuanian commonwealth in 1764 444
Compiled by B1397. Download KML
16 minutes ago 2 maps 100%
(2 maps)
Maps sanborn denver 1929 vol1 075 Denver 1929 Sanborn
Compiled by Dennis. Links: Source / Biblio Ref Download KML
1929 about 1 hour ago 65 maps 100%
(65 maps)
Missing Konti
Compiled by Kontinent.
about 7 hours ago 0 maps 0%
(0 maps)
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