Map Warper

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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!

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!

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News

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

What’s coming to Mapwarper.net – new stuff!
Mapwarper.net 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

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Last Rectified Maps

Map Title Year Last Updated Status
Screenshot 2025 03 04 094746
2025 about 1 hour ago 7 control points
Screenshot 2025 03 04 072106
2025 about 1 hour ago 7 control points
Mnmapgoldbergtest
Test map
2025 about 2 hours ago 3 control points
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Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
1 kgsp3gz2ed2cjybvh3mxjgr Bronx 1887 Robinson
Atlas of the city of New York, Volume Five, embracing the 23rd Ward, second edition, : from official records, private plans & actual surveys , [title page] Names E. Robinson Co. (Publisher) Robinson, E. (Elisha) (Cartographer) Pidgeon, R. H. (Roger H.) (Cartographer) Mueller, A. H. (August H.) (Engraver) Collection Atlases of New York City New York City and Vicinity Atlas of the city of New York : from official records, private plans & actual surveys [1883-1888] Volume Five: Embracing the 23rd Ward, 2nd ed. Dates / Origin Date Issued: 1887 Place: New York Publisher: E. Robinson Co. Library locations Lionel Pincus and Princess Firyal Map Division Shelf locator: Map Div.+++ (New York City) (Robinson, E. Atlas of the city of New York. 1883) [v. 5 disbound] Topics New York (N.Y.) Manhattan (New York, N.Y.) Genres Title pages Notes Statement of responsibility: By and under the supervision of E. Robinson & R. H. Pidgeon, civil engineers. Type of Resource Text Languages English Identifiers RLIN/OCLC: 29088320 NYPL catalog ID (B-number): b13682411 Universal Unique Identifier (UUID): 35d0f9c0-c5fa-012f-4dde-58d385a7bc34 Compiled by AlanL. Download KML
1887 3 days ago 22 maps 100%
(22 maps)
Curtorimvisionplan2020 Community maps of Goa
Made by the people of Goa Compiled by Arun Ganesh. Download KML
3 days ago 3 maps 100%
(3 maps)
1861 county map tile1 1861 Rensselaer County New York
Compiled by Richard Welty. Links: Source / Biblio Ref Download KML
1861 4 days ago 3 maps 100%
(3 maps)
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