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 15 Oct there has been about €485 donated. We're almost reached the year goal and have 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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Last Rectified Maps

Map Title Year Last Updated Status
Waverley
2025 37 minutes ago 8 control points
1729 northern neck grant map
This map shows the original patents and Northern Neck grants of Fairfax County, Virginia, from 1651 to 1962. It was created by Beth Mitchell as a companion to the book "Beginning at a White Oak". The project area covers 446 square miles, including what is now Fairfax County, Arlington County, the City of Alexandria, Falls Church, and Fairfax City. The map was prepared using a 1974 base map of Fairfax County. The historical land grants were plotted by converting the metes and bounds from original surveys and deeds to scale. It serves as a historical and genealogical research tool for understanding the original settlement patterns and land ownership in the region.
1651 about 2 hours ago 7 control points
Matraville malabar yarra 5
m_5
2025 about 2 hours ago 4 control points
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Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
Missing Plan de la ville de Nice, avec indication de tous les noms de rues, établissements publics, monuments, hôtels et banques
Compiled by divulmappeur. Download KML
1891 about 6 hours 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 16 hours ago 73 maps 100%
(73 maps)
Screenshot 2025 09 30 at 3.06.41%e2%80%afpm Goa WLS Zonation Maps
WLS zonation plans from respective management plans sourced from Goa Forest Department Compiled by Arun Ganesh. Links: Source / Biblio Ref Download KML
about 21 hours ago 7 maps 100%
(7 maps)
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