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 (Nov) there has been about €512 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

3D time enabled historical streetscapes re.city Kartta Labs with Google Research
Kartta Labs and re.city was a really cool Google Research project that I was involved in a few years ago. It enabled users to view, interact and contribute to historical... read more

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

Search for
Year

browse all maps


Last Rectified Maps

Map Title Year Last Updated Status
Master gmd gmd396m g3964m g3964nm g3964nm g08356191401 08356 01 1914 0028
1914 Vol 1 Section 28 of Sanborn Fire Insurance Map from Nashville, Davidson County, Tennessee. (In 1 layer)
1914 42 minutes ago 6 control points
1929 3 2 2 47 josmanjaa
1929 about 1 hour ago 25 control points
Image 20251123 0001
map of valley forge high school in parma heights, ohio
2025 about 1 hour ago 18 control points
See all maps

Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
Master gmd gmd396m g3964m g3964nm g3964nm g08356191401 08356 01 1914 0001 1914 Vol 1 of Sanborn Fire Insurance Map from Nashville, Davidson County, Tennessee
1914 Vol 1 of Sanborn Fire Insurance Map from Nashville, Davidson County, Tennessee Compiled by Jayden. Download KML
42 minutes ago 42 maps 71%
(30 maps)
83106 202401 02 2024 131 HKG
Compiled by Wright.one. Download KML
about 10 hours ago 146 maps 100%
(146 maps)
Nl uthua a180589 000002 Spoorlijnen rond Den Haag ~1970
Compiled by Tethys_. Download KML
1 day ago 6 maps 100%
(6 maps)
View all Mosaics
Create a new mosaic