Map Warper

Log In Create Account


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!

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 for more information!


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 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

What’s coming to – new stuff! is getting an upgrade of code early this first week in April. New things: Keyboard shortcuts New JSON-API and docs Map caching for faster maps Bigger map windows Upgraded... read more

Search for

browse all maps

Last Rectified Maps

Map Title Year Last Updated Status
Sophie d   s. imperum romano   germanicum 1720
Petrus Schenk - S. Imperium Romano Germanicum oder teutschland mit seinen angräntzenden Königreichen und Provincien - circa 1720
2018 about 3 hours ago 9 control points
Maharashtra assembly page 001
2019 about 5 hours ago 14 control points
Mahatrashtra assembly election result 2014
2019 about 8 hours ago Unrectified
See all maps

Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
Seitin3 test
Compiled by viruzab. Download KML
6 days ago 3 maps 100%
(3 maps)
201102342 nwimhdax Eastern Anatolia
Ottoman Map of today's Southeastern and Eastern Anatolia Regions Compiled by Nurullah Parlakoğlu. Download KML
1913 7 days ago 10 maps 100%
(10 maps)
Palosverdes colorado parks
Compiled by Jeremy S. Download KML
12 days ago 199 maps 99%
(197 maps)
View all Mosaics
Create a new mosaic