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!

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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
Nyc 32nd
New York Central Yard near 32nd Street
2024 32 minutes ago 4 control points
Philadelphiaholc3182024spivey
Philadelphia Residential Security Map circa 1937
1937 about 2 hours ago 6 control points
N22e103 2016 v20.06 10m
From JAXA's https://www.eorc.jaxa.jp/ALOS/en/dataset/lulc/lulc_vnm_v2104_e.htm, with explicit permission for OSM and non-commercial use. (In 1 layer)
2016 about 2 hours ago 4 control points
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Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
N21e105 2016 v20.06 10m JAXA landuse map Vietnam
From High-Resolution Land Use and Land Cover Map (https://www.eorc.jaxa.jp/ALOS/en/dataset/lulc/lulc_vnm_v2104_e.htm), with explicit permission for OSM and non-commercial use. Compiled by CactiStaccingCrane. Download KML
2016 about 10 hours ago 60 maps 93%
(56 maps)
S10 kijewo zdunowo 1 3 S10 Szczecin Kijewo - Szczecin Zdunowo
Koncepcja Programowa Compiled by AndyB66. Download KML
2023 2 days ago 3 maps 100%
(3 maps)
Sheet74 Denver 1936 USGS
Topographic atlas of the City and County of Denver, Colorado Compiled by Dennis. Links: Source / Biblio Ref Download KML
1936 3 days ago 96 maps 100%
(96 maps)
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