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
%c4%b0stanbul rana
2019 37 minutes ago 2 control points
2019 44 minutes ago 4 control points
Clark1ic 39015091187024 full 10912 13112  0 native
1830 about 1 hour ago 12 control points
See all maps

Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
Abdsp park map201704 Southern California Open Routes
Compiled by Brian. Download KML
about 24 hours ago 8 maps 100%
(8 maps)
1zc3760090471 Capital District NY, 1952
imagery from a 1952 Aerial Imagery Pass Compiled by Richard Welty. Download KML
1952 1 day ago 28 maps 100%
(28 maps)
Missing test
Compiled by tommy.
3 days ago 0 maps 0%
(0 maps)
View all Mosaics
Create a new mosaic