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
Xzv6pabmaakrpdz1639989287 1639989292
2021 2 days ago 4 control points
Mjnmypyustscjpb1642279371 1642280732
2022 2 days ago Unrectified
2022 2 days ago Unrectified
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Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
Sx424rh8152 kmiaufqw 五万分の一地形圖(北陸)
モザイクが作成できないので、再挑戦! Compiled by Joe. Links: Source / Biblio Ref Download KML
1910 about 1 month ago 3 maps 100%
(3 maps)
Qt864tk4204 rftevshn 五万分の一地形圖(北陸)
国土地理院の五万分の一地形圖をモザイク化してみました。 Compiled by Joe. Download KML
1910 about 1 month ago 27 maps 100%
(27 maps)
Missing 五万分の一地形圖(北陸)
国土地理院の旧版の五万分の一地形圖のモザイクを作成してみました。 Compiled by Joe. Links: Source / Biblio Ref
1910 about 1 month ago 0 maps 0%
(0 maps)
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