100 Japanese Computer Terms Every Software Engineer in Japan Needs to Know

Japanese software engineer
Working in a Japanese workplace can be challenging enough by itself but add to that a slew of technical IT-related words, and it can be easy to get lost. This article aims to serve as a reference or study guide for some of the most important Japanese words that every software engineer needs to know.

As a Software Engineer, Effective Communication is Important!

There are a lot of terms related to computers, the internet, coding, and software development in general. If you’re hoping to work in an IT-related field in Japan, you’ll need to remember pretty much all the Japanese terms in this article, which is quite a lot. The good news is, a huge majority of tech-related words are simply adopted from English! This means that all you have to do is work on your Japanese pronunciation to be able to communicate effectively!

Use This Page as a Reference

This page is intended to serve as a reference for those trying to learn Japanese terms related to IT. Treat it like a glossary to search for a specific word (using ctrl + f), or just browse through the categories and learn new words and terms as you go.

Basic Japanese Computer Terms

Before we even get to the more technical terms introduced below, these are the absolute basic terms related to computers in general. Even those who don’t work in an IT-related field will probably use these terms regularly at work, so they are worth remembering.

Essential Japanese Computer Nouns

English TermJapaneseRomaji
Appアプリ“apuri”
Browserブラウザ“burauza”
(Computer) Programプログラム“puroguramu”
CPUCPU“shii pii yuu”
Dataデータ“deeta”
Desktopデスクトップ“desukutoppu”
Device機器・デバイス“kiki” or “debaisu”
Emailメール“meeru”
Hard Driveハードドライブ“haado doraibu”
Internetインターネット“intaanetto”
IP AddressIPアドレス“aipii adoresu”
Keyboardキーボード“kiiboodo”
Laptopラップトップ“rapputoppu”
Monitorモニター“monitaa”
Mouseマウス“mausu”
Printerプリンター“purintaa”
RamRAM“ramu”
Screen画面“gamen”
Serverサーバー“saabaa”
Settings設定“settei”
Spaceスペース・空白“supeesu” or “kuuhaku”
Touchpadタッチパッド“tacchipaddo”
URL URL“yuu aaru eru”
Websiteウェブサイト“webusaito”
Basic Japanese computer-related terms
English TermJapaneseRomaji
Boot起動“kidou”
Clickクリック“kurikku”
Collapse縮小“shukushou”
Connect繋ぐ“tsunagu”
Delete削除“sakujo”
Double Clickダブルクリック“daburu kurikku”
Drag and Dropドラッグアンドドロップ“doraggu ando doroppu”
Edit編集“henshuu”
Enter (data)入力“nyuuryoku”
Expand拡大“kakudai”
Fileファイル“fairu”
Insert挿入“sounyuu”
Keywordキーワード“kiiwaado”
Loginログイン“loguin”
Passwordパスワード“pasuwaado”
Print印刷“insatsu”
Redoやり直す“yarinaosu”
Restart再起動“saikidou”
Save保存“hozon”
Screen Share画面を共有する“gamen wo kyouyuu suru”
Search検索“kensaku”
Search Engine検索エンジン“kensaku enjin”
Select選択する“sentaku suru”
Send送信“soushin”
Shut Downシャットダウン“shattodaun”
Start開始“kaishi”
Type (on a keyboard)タイプする“taipu suru”
Undo元に戻す“moto ni modosu”
Usernameユーザー名“yuuzaamei”
Japanese terms related to using a computer

The following terms will probably only be of use to people who frequently write code or who are involved with software development in some other way. Again, most of the Japanese words are simply borrowed from English, so remembering them shouldn’t be too difficult. For the ones that aren’t, don’t get too stressed out. You’ll learn them soon enough, and there’s even a good chance that your Japanese coworkers will be able to understand the English versions of the words, anyway. Still, it’s best to study up so you can follow along at meetings, etc.

English TermJapaneseRomaji
APIAPI“ee pii ai”
Asynchronous非同期“hidouki”
Back Endバックエンド“bakkuendo”
Build (noun)ビルド“birudo”
Code Reviewコードレビュー“koodo rebyuu”
Data Structureデータ構造“deeta kouzou”
Data Typeデータ種類“deeta shurui”
Databaseデータベース“deetabeesu”
Deploy配備する“haibi suru”
Design (noun)設計“sekkei”
Developer開発者“kaihatsusha”
Development開発“kaihatsu”
Frameworkフレームワーク“fureemuwaaku”
Front Endフロントエンド“furontoendo”
Full Stackフルスタック“furusutakku”
HTTP RequestHTTPリクエスト“eichi tii tii pii rikuesuto”
IDEIDE“ai dii ii”
Implementation実装“jissou”
Input入力“nyuuryoku”
Machine Learning機械学習“kikai gakushuu”
Maintenance保守“hoshu”
Neural Networkニューラルネットワーク“nyuuraru nettowaaku”
Object-Orientedオブジェクト指向“obujekuto shikou”
Operation運用“unyou”
Outputアウトプット“autoputto”
Programming Languageプログラミング言語“puroguramingu gengo”
Securityセキュリティー“sekyuritii”
Sourceソース“soosu”
Sprintスプリント“supurinto”
Tokenトークン“tookun”
Japanese terms relating to software development
English TermJapaneseRomaji
Add (to something)追加する“tsuika suru”
Array配列“hairetsu”
Binaryバイナリー“bainarii”
Bitビット“bitto”
Booleanブール“buuru”
Bugバグ“bagu”
Callコール“kooru”
Character文字“moji”
Classクラス“kurasu”
Command Lineコマンドライン“komando rain”
Compileコンパイルする“konpairu suru”
Conditional条件つき“jouken tsuki”
Constant定数“teisuu”
Debuggingデバッグする“debaggu suru”
Declare宣言する“sengen suru”
Declaration宣言“sengen”
Define定義する“teigi suru”
Errorエラー“eraa”
Eventイベント“ibento”
Event Handlerイベントハンドラー“ibento handoraa”
Exception例外“reigai”
Function関数“kansuu”
Iteration反復する・繰り返す“hanpuku suru” or “kurikaesu”
Loopループ“ruupu”
Nullヌル“nuru”
Objectオブジェクト“obujekkuto”
Operator演算子“enzanshi”
Parameterパラメータ“parameeta”
Processプロセス・処理“purosesu” or “shori”
Run実行する“jikkou suru”
Statementステートメント・文“suteetomento”
Stop停止“teishi”
Tagタグ“tagu”
Variable変数“hensuu”
Japanese coding terms
English TermJapaneseRomaji
Background背景“haikei”
Blockブロック“burokku”
Borderボーダー“boodaa”
Boxボックス“bokkusu”
Cellセル“seru”
Circle“maru”
Column“retsu”
Composition構成“kousei”
Fontフォント“fonto”
Footerフッター“futtaa”
Headerヘッダー“heddaa”
Heading見出し“midashi”
Marginマージン“maajin”
Paddingパディング“padingu”
Pixelピクセル“pikuseru”
Rectangle長方形“chouhoukei”
Row“gyou”
Square正方形“seihoukei”
Styleスタイル“sutairu”
Whitespace空白“kuuhaku”
Japanese coding terms related to page layout

Good Luck With Your Software Engineering Career in Japan!

Hopefully, this page will be useful for you on your quest to work as a software engineer in Japan. If you are looking for help finding a job related to coding, visit our website tsunagu Local Jobs and create an account for free to get support from our multilingual staff!

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By the way, if you're looking for a job or career change and you're already in Japan, we now have a jobs site called tsunagu Local Jobs! On top of having exclusive job listings that you won't find anywhere else, we've vetted all the listings to ensure that they're foreigner-friendly and high quality. If you register for an account on the site, you can even make use of our agent service where our international staff will help you find the perfect job in Japan, so check it out today!

The information in this article is accurate at the time of publication.

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