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 (Nov) there has been about €512 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

3D time enabled historical streetscapes re.city Kartta Labs with Google Research
Kartta Labs and re.city was a really cool Google Research project that I was involved in a few years ago. It enabled users to view, interact and contribute to historical... read more

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

Search for
Year

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Last Rectified Maps

Map Title Year Last Updated Status
1   c%c3%b2pia
1914 about 1 hour ago 23 control points
S19 d k pab 16a
S19 Domaradz - Iskrzynia (In 1 layer)
2025 about 2 hours ago 4 control points
Untitled  2048 x 1250 px
2025 about 3 hours ago 14 control points
See all maps

Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
Lee m bastard ON
Compiled by Haley.
16 minutes ago 2 maps 0%
(0 maps)
S19 d k pab 01 S19 Domaradz - Iskrzynia
Projekt Architektoniczno-Budowlany Compiled by AndyB66. Download KML
2025 about 2 hours ago 19 maps 100%
(19 maps)
86 16 1 Cuyahoga County Records Map Vol. 86 Pages 15-21 - The H.A.Stahl Properties Co's Ridgewood Subdivision No 8
Compiled by kiritimati_c7g. Download KML
1923 about 3 hours ago 7 maps 100%
(7 maps)
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