Typing Japanese on Your Smartphone: Adding a Keyboard and Using Flick Input
Updated: 2026-09-15
Quick answer
Hi, I'm Miya, and I help newcomers settle into life in Japan. This guide isn't about learning to read kana or studying the language — it's about the very practical skill of typing Japanese on your phone, so you can fill in a sign-up form, reply to a message, or enter your address without hunting for someone to help.
The short version: add a Japanese keyboard in your phone's keyboard or language settings, pick either romaji input (type Latin letters that turn into kana) or flick input (a kana grid you tap and swipe), then choose the right kanji from the suggestions that pop up. Once you've typed your own name and address a couple of times, most everyday forms stop feeling intimidating.
Adding a Japanese keyboard
Menu names differ from phone to phone and between system versions, so I'll keep this generic. Open your phone's settings and look for something like keyboard, language and input, or general then keyboards. From there, choose to add a new keyboard and select Japanese. Many phones then ask which layout you want, and you can usually add more than one.
Once it's added, a small switch key — often a globe or keyboard icon near the bottom of the keyboard — lets you move between your usual language and Japanese while you type. If you can't find the setting, try searching the word keyboard inside your settings app; that tends to take you straight there.
Romaji input or flick input?
Romaji input uses a familiar letter layout. You type the sounds in Latin letters and they appear as hiragana as you go: k then a becomes か, s then u becomes す. A few habits help — type nn for ん, double the next consonant for a small っ (kitte gives きって), and use the hyphen key for the long vowel mark ー. If you already type quickly in English, this is usually the gentlest start.
Flick input, sometimes called kana input, shows a grid of twelve keys with one kana column on each key. It feels strange for the first few days, but it needs far fewer taps than romaji, which is why so many people in Japan use it. There's no wrong choice here: plenty of newcomers begin with romaji and add the kana layout later once they're comfortable reading the characters.
How flick input actually works
Each key on the grid is labelled with the first kana of a row: あ, か, さ, た, な, は, ま, や, ら and わ. Tap a key and you get that character from the あ-column — tap か and you get か. To reach the other vowels, touch the key and slide your finger: left for the い sound, up for う, right for え, and down for お. So on the か key, flick left for き, up for く, right for け and down for こ. A small guide usually appears around your finger as you press, which makes learning much easier.
Voiced sounds and small characters come from a separate key, usually marked with ゛゜ or 小. Type the base character first, then tap that key: か becomes が, は cycles to ば and ぱ, and つ can become a small っ. Many keyboards also let you tap a key repeatedly to cycle through its characters instead of flicking, and you can generally switch this in the keyboard settings if it keeps getting in your way.
Turning kana into kanji and katakana
Whichever layout you use, you start by typing the reading in hiragana. A row of suggestions then appears above the keyboard, and you tap the one you want — type とうきょう and 東京 should be among the candidates. If the right kanji doesn't show, open the full candidate list, or try typing the words in shorter chunks, since longer phrases can be split in unexpected places.
Katakana, used for foreign names and loanwords, comes from the same candidate list: type すみす and スミス is usually offered. Your keyboard also learns from what you pick, so the words you use often rise to the top. Many keyboards include a user dictionary where you can register a reading and the exact word it should produce — a small setup step that pays off every time you type your name.
Forms: your name, your address, full-width and half-width
Sign-up forms, delivery requests and application pages in Japan often ask for your name in katakana (look for a field labelled フリガナ or カナ) as well as in the letters shown on your residence card. It's worth saving your katakana name in your user dictionary so it comes out the same way every time. For your address, many forms fill in the prefecture and city automatically once you enter your postal code; you then type the rest, and your residence card is a handy reference for the exact kanji and block numbers.
The other thing that trips people up is full-width (全角, zenkaku) versus half-width (半角, hankaku) characters. Some fields want full-width katakana for names, while phone numbers and postal codes often need half-width digits, and a form may show an error like 全角で入力してください (please enter in full-width) if the format doesn't match. When you convert, candidates are often labelled 全 or 半, and switching to your regular letter keyboard for numbers usually gives half-width. Requirements vary by site, so read the small note next to each field.
A small thing that makes every form easier
Once your keyboard is set up, you'll notice how many of those same sign-up forms, delivery slips and messages also ask for a Japanese phone number, often to send a confirmation code. So having a Japanese number with data in place early makes everyday registrations much smoother. Setting one up is refreshingly simple — you apply online with your residence card, verify with a quick eKYC, and eSIM-capable phones can connect the same day, often within about fifteen minutes.
Have a look at our setup guide for eligibility and the step-by-step, and confirm current terms on the page before you apply. Get the line sorted, add that Japanese keyboard, practise typing your name and address a few times, and you'll be ready for the next form that comes your way. I'll be right here to help.
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