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!
Tags
USGS 1940 Census Titus Victory Parkway Hamilson County Rand McNally cayuga ethnicities redlining auburn village Robinson Cincinnati MLK Geographia G F Cram GSGS Open Street Map Gilbert Ave Walnut Hills Census Topographic WHT Road Canterbury Morrell Pond Google Maps Outline Harriet Beecher Stowe Sanborn
News
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Mapwarper.net emails improved
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Internationalization (i18n) and Translations for Mapwarper. (English, Dutch, Japanese)
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New shortcuts and add layer features in mapwarper.net
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Last Rectified Maps
| Map | Title | Year | Last Updated | Status |
|---|---|---|---|---|
|
Jonathan Schroeder, David Van Riper, Steven Manson, Grace Cooper, Zachary Krause, Tracy Kugler, Tsu Zhu, and Steven Ruggles. IPUMS National Historical Geographic Information System: Version 21.0 dataset. Minneapolis, MN: IPUMS. 2026.
& TIGER/Lines Shapefiles
& QGIS 4.2.2
Links: Source / Biblio Ref
|
2020 | about 9 hours ago | 18 control points |
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Jonathan Schroeder, David Van Riper, Steven Manson, Grace Cooper, Zachary Krause, Tracy Kugler, Tsu Zhu, and Steven Ruggles. IPUMS National Historical Geographic Information System: Version 21.0 dataset. Minneapolis, MN: IPUMS. 2026.
& TIGER/Lines Shapefiles
& QGIS
Links: Source / Biblio Ref
|
1990 | about 10 hours ago | 18 control points |
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Jonathan Schroeder, David Van Riper, Steven Manson, Grace Cooper, Zachary Krause, Tracy Kugler, Tsu Zhu, and Steven Ruggles. IPUMS National Historical Geographic Information System: Version 21.0 dataset. Minneapolis, MN: IPUMS. 2026.
& TIGER/Line Shapefiles
& QGIS 4.2.2
Links: Source / Biblio Ref
|
1980 | about 10 hours ago | 18 control points |
Recent Mosaics
| Mosaic | Title | Year | Last Updated | Number of Maps | Percentage Complete |
|---|---|---|---|---|---|
|
1930 Census Tracts
Compiled by JoAnn Morse. Download KML |
1930 | 1 day ago | 1 map |
100% (1 map) |
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1940 Census Tracts
Compiled by JoAnn Morse. Download KML |
1940 | 1 day ago | 1 map |
100% (1 map) |
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TestCensusTracts
Compiled by JoAnn Morse. Download KML |
4 days ago | 1 map |
100% (1 map) |
Create a new mosaic