
J-Mapcode: Japan Map Converter
Mapcode for Rental Car Navi
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Free
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About
J-Mapcode converts a Japanese address, place or landmark name, Google Maps share link, coordinates, postal code or phone number into a Mapcode that you enter straight into your rental car's navigation unit in Japan.
Built for travelers who rent a car in Japan and cannot type Japanese addresses into the navigation unit. The Mapcode works with most Japanese car navigation systems.
What is Mapcode?
Mapcode is a location code system widely used in Japanese car navigation systems. Unlike traditional addresses, Mapcode provides a simple, short code that pinpoints exact locations.
Key Features
- Quick Conversion: Pick the right place from the candidate list and get its Mapcode
- One-Tap Copy & Share: Copy the Mapcode, or share it as text with a card image
- Conversion History: Recent conversions appear on the home screen, with a full history screen. Tap one to reopen the saved result, even offline.
- Check the location on Google Maps from the result screen
- View place guide: Open the spot's page on jmapcode.com (listed places only)
- Multi-Language Support: Japanese, English, Korean, German, French, Spanish, Portuguese (Brazil), Simplified & Traditional Chinese
- Clean Interface: Designed for travelers on the go
Why Use This App?
- Made for rental car users in Japan
- Save time finding destinations
- No complicated address input needed
- Useful for tourists and business travelers
User Experience
- Simple, intuitive design
- Dark mode and five color themes
- Free with a small banner ad only, no full-screen ads
Supported Locations
All regions in Japan including Tokyo, Osaka, Kyoto, Hokkaido, Okinawa, and more.
Privacy & Security
- No user account required
- No location permission needed
Devices: iPhone, iPad
Languages: Japanese, English, Korean, German, French, Spanish, Portuguese (Brazil), Simplified Chinese, Traditional Chinese
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What's New in J
1.4.5
October 26, 2026
Version 1.4.5 - Recent conversions on the home screen, plus a full history. Tap one to reopen the result instantly, even offline - Sharing now sends a card image with the Mapcode - New "View place guide" button opens the spot's page on jmapcode.com (listed places only) - Send feedback from Settings - Better phone number search, including numbers entered as +81 followed by a 0, and clearer messages when a mobile number can't be found
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