Japanese keyboard on android

I am trying to add Japanese input on my phone Android 14 (a degoogled custom ROM) and I am struggling to find anything in the settings. I’m not sure if it’s because I’m using a custom ROM and perhaps there is no default option in AOSP, but if it is and I need to download one could someone point me to some good options (preferably open-source). If I’m just being dumb a few pointers would be nice :sweat_smile:

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On my Android devices, the language options are set in the keyboard settings, not in the device settings. Are you able to download a keyboard with Japanese support?

It looks like you might be able to install Mozc from F-Droid, but it also looks like it hasn’t been updated in five years. It’s actively developed on GitHub (https://github.com/google/mozc), though, so you may be able to build it yourself.

Mozc is a Japanese Input Method Editor (IME) designed for multi-platform such as Android OS …

Android is the first platform they mention, but it doesn’t seem like they share any builds, so there will probably be some manual labor involved.

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I use the SwiftKey keyboard and I added Japanese in its settings.


Yeah I saw an outdated Mozc on F-Droid though I don’t think it’s compatible with Android 14 so indeed I might have to build.

In terms of settings if I go to system → keyboard → onscreen keyboard, then I see one called “Keyboard” and if I click on it and click languages Japanese literally isn’t on the list. I scrolled down and letter “J” is literally skipped under languages.

I noticed Google has “Gboard” on Play store so I must be using an AOSP default or one built by my custom ROM.

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Did some digging and found out I am using the AOSP keyboard but apparently it doesn’t have good support for many languages so I need to install a 3rd-party keyboard.


I use Simeji. https://play.google.com/store/apps/details?id=com.adamrocker.android.input.simeji&hl=en&gl=US