Japanese Map Warper

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English (en)


You can display your own maps against a real map (OpenStreetMap) for free, and make them available on the Web for anyone in the world. Maps such as handwritten or old ones can be used as well as modern standardized ones.

Uploaded maps are rectified (warped) against a real map by adding control points, which specify geographical positions.

Once published, these maps are available to export in image or map formats.


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About Map Warper

This tool is a Japanese instance of Map Warper, an open source georeferencing application. Map Warper is developed by Tim Waters, who is a geospatial developer and consultant, in response to the promotion of digital publishing of maps in Western countries and the increasing need for georeferncing software. We localize it and provide this Japanese version of Map Warper here, to promote free web-based georeferencing tools in Japan, supported by JSPS KAKENHI (16H01965, 17H06186).


Keiji Yano
Geography Department
Ritsumeikan University


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
Fmapoteca 2389 fbnc 880
2023 3 days ago 8 control points
2023 3 days ago Unrectified
Fmapoteca 2388 fbnc 879
2023 3 days ago 9 control points
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Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
1112953889 0001%e6%97%a5%e6%9c%ac%e6%a9%8b 東京市火災動態地図
Compiled by kamataryo.
3 days ago 9 maps 100%
(9 maps)
Mk321dw7190 cuxofeay 五万分一地形圖
Compiled by shapez. Download KML
about 2 months ago 53 maps 100%
(53 maps)
Fmapoteca 2197 fbnc 695 Mosaico de la Provincia de JMR
Compiled by apicon. Download KML
3 months ago 11 maps 73%
(8 maps)
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