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
1956 184
Adapted from Manhattan Land book of the City of New York. Desk and Library ed. 1956 Dates / Origin Date Issued: 1955 Date Issued: 1956 Place: New York Publisher: G.W. Bromley & Co.
1956 4 minutes ago 5 control points
Got map
2019 9 minutes ago 4 control points
Game of thrones map
(In 1 layer)
2019 34 minutes ago 7 control points
See all maps

Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
Game of thrones map GoT Mosaic
Compiled by Jennifer Andrella. Download KML
34 minutes ago 1 map 100%
(1 map)
Got map got mosaic
Compiled by Jennifer Andrella.
39 minutes ago 1 map 0%
(0 maps)
Missing got mosaic
Compiled by Jennifer Andrella.
40 minutes ago 0 maps 0%
(0 maps)
View all Mosaics
Create a new mosaic