Map Warper

Log In Create Account
To help free up space, I removed a few files, so you may need to re-rectify (and/or crop) a map if you can't see it in the maps Preview tab.
Also a few maps which were old, untouched and never rectified, with no points on them and without belonging to a mosaic were removed, so you might need to re-upload.


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
Es 41 page 001
2022 less than a minute ago 3 control points
Es 38 page 001
2022 20 minutes ago 8 control points
Es 37 page 001
2022 about 1 hour ago 4 control points
See all maps

Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
Missing Temperatura en el Tolima
Compiled by Cristian.
about 8 hours ago 0 maps 0%
(0 maps)
2033 13 SPB-10: St.Petersburg aerogeodesic topomap about 1980-1995 year
Coordinate system: EPSG:6331964 SR-ORG:8613 Russia MSK-1964 St.Petersburg. Height system: Baltic local. Scale: 1:2000. Compiled by Artyom Krukovsky. Download KML
1989 2 days ago 1784 maps 100%
(1784 maps)
1820 cartwright   sing sing and sparta 1   levels Sing Sing and Sparta 1820
Compiled by jforjacob. Download KML
1820 2 days ago 2 maps 100%
(2 maps)
View all Mosaics
Create a new mosaic