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
8212e444e2e9a2255881a9aa2f531f97
2026 9 minutes ago 4 control points
J%c3%a1szlad%c3%a1ny sz%c3%a1va tanya 2026 09 08 orthophoto
2026 21 minutes ago 3 control points
Biaapa mp2021 plu g2 p40
Proposed Land Use composite map from the Master Plan 2021, prepared by BIAAPA for the Bangalore International Airport Planning Area. 34 grid sheets at 1:10,000, drawn January 2009. (In 1 layer)
2009 32 minutes ago 9 control points
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Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
Biaapa mp2021 plu e3 p30 BIAAPA Master Plan 2021 — Proposed Land Use
Proposed Land Use composite map from the Master Plan 2021, prepared by BIAAPA for the Bangalore International Airport Planning Area. 34 grid sheets at 1:10,000, drawn January 2009. Compiled by Akshay. Download KML
2009 32 minutes ago 34 maps 59%
(20 maps)
Map1 Old Spanish Trail
Compiled by Mike Bailey. Download KML
about 17 hours ago 19 maps 100%
(19 maps)
Master gmd gmd408m g4084m g4084cm g4084cm g06648195203 06648 03 1952 0049 Cleveland Flats Sanborn 1952
Compiled by b7176. Download KML
3 days ago 2 maps 100%
(2 maps)
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