Map Warper

Log In Create Account

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 2026 (Feb) there has been about €156 donated.
In 2025 you donated 80% of the server costs, many thanks!
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!

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

Search for
Year

browse all maps


Last Rectified Maps

Map Title Year Last Updated Status
Screenshot 20260310 104919 chrome 2
2026 16 minutes ago 6 control points
1901 fair oaks plat map for mhm 250
L.L.Smith Surveyor Eastern half of SE 1/4 of Section 6. Township 7N; Range 10E - Dane Co. Map image shared by permission from Angela Richardson
1901 26 minutes ago 8 control points
Ku sanborn 4505 jpg
2026 40 minutes ago 3 control points
See all maps

Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
Maps sanborn denver 1929 vol1 075 Denver 1929 Sanborn
Compiled by Dennis. Links: Source / Biblio Ref Download KML
1929 about 4 hours ago 117 maps 100%
(117 maps)
Missing Noordwolde Zuid
Compiled by Mees.
about 11 hours ago 0 maps 0%
(0 maps)
Missing awdawdad
adwwd Compiled by Marko.
1 day ago 0 maps 0%
(0 maps)
View all Mosaics
Create a new mosaic