Japanese Map Warper

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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
2020 19 days ago 4 control points
Bl 01 0250 lfeqogzu
明治3 *多色刷り。英語の地名記載あり。刊記書肆「東京、大黒屋金之助/横浜、佐野屋富五郎・小林屋銀次」。存原外袋(「Map of Yokohama/(新版)横浜全図/吟香閣蔵版」)。 Xylograph; some place names printed in roman letters.
1870 22 days ago 8 control points
Kyoto map
2018 about 1 month ago 3 control points
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Recent Mosaics

Mosaic Title Year Last Updated Number of Maps Percentage Complete
5537 dhlybzgj 二十万分の一地勢圖(全国)
全国の二十万分の一地勢圖のモザイクです(途中) Compiled by aiueo123. Links: Source / Biblio Ref Download KML
1919 2 months ago 48 maps 100%
(48 maps)
Zb273ww8057 eulgkjmr 関東地方旧版地形図
関東地方の旧版地形図モザイク Compiled by habs.niaes. Download KML
1920 3 months ago 78 maps 100%
(78 maps)
Jh185cm6565 voalhgri 北海道旧版地形図(1/5万)
Compiled by habs.niaes. Download KML
1920 10 months ago 200 maps 100%
(200 maps)
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