# Google Japanese Input

> Japanese input method editor by Google

**Wikidata**: [Q1047019](https://www.wikidata.org/wiki/Q1047019)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Google_Japanese_Input)  
**Source**: https://4ort.xyz/entity/google-japanese-input

## Summary  
Google Japanese Input is a Japanese input method editor developed by Google, enabling users to type in Japanese across desktop and mobile platforms. It supports major operating systems including Windows, macOS, and ChromeOS. The tool was first released on December 3, 2009, and later succeeded by Gboard on Android.

## Key Facts  
- **Developed by**: Google (American multinational technology company)  
- **Release date**: December 3, 2009  
- **Platforms supported**: Microsoft Windows, macOS, ChromeOS  
- **License**: Proprietary  
- **Also known as**: Mozc, Google IME, Google日本語入力, グーグル日本語入力  
- **Replaced by**: Gboard (on Android)  
- **Programming language**: C++ (via Q2407 reference)  
- **Country of origin**: Japan  
- **Distribution format**: Digital download  
- **Instance of**: Japanese input method, mobile app  

## FAQs  
### Q: What is Google Japanese Input used for?  
A: Google Japanese Input is an input method editor that allows users to type in Japanese on computers and mobile devices. It converts typed Roman characters (Romaji) into Hiragana, Katakana, and Kanji.

### Q: Is Google Japanese Input still available?  
A: Yes, it remains available for desktop platforms, though it has been largely superseded by Gboard on Android since 2017.

### Q: Can I use Google Japanese Input on Mac or PC?  
A: Yes, it supports both macOS and Microsoft Windows, as well as ChromeOS.

## Why It Matters  
Google Japanese Input significantly improved accessibility to Japanese digital communication by offering a high-quality, free input method with strong predictive capabilities. As part of Google's broader localization efforts, it helped bridge language barriers for millions of users interacting with Japanese content online. Its open-source component, Mozc, also contributed to advancements in natural language processing tools for Japanese computing environments. By integrating seamlessly with popular operating systems, it became one of the most widely adopted third-party input methods in Japan.

## Notable For  
- One of the first major cloud-connected Japanese input method editors with smart predictions  
- Integration with Google services such as Gmail and Search for contextual suggestions  
- Open-sourced core engine under the name Mozc  
- Support for multiple platforms including Windows, macOS, and ChromeOS  
- Precursor to Gboard’s advanced multilingual typing features  

## Body  
### Development and Release  
Google Japanese Input was created by Google and officially launched on December 3, 2009. It was designed to provide accurate and efficient Japanese text input using machine learning algorithms trained on large-scale linguistic data from web searches and other sources.

### Technical Features  
The software uses statistical language models to predict user intent when converting Romaji to Kana and Kanji. It includes features like:
- Real-time conversion
- Customizable dictionaries
- Handwriting recognition support
- Emoji and symbol insertion

It runs on:
- Microsoft Windows
- macOS
- ChromeOS (as noted in documentation updated October 22, 2022)

### Derivative Work – Mozc  
Mozc is the open-source version of the backend engine powering Google Japanese Input. Released alongside the product, Mozc allowed developers and researchers to build upon and improve Japanese input technologies independently.

### Replacement by Gboard  
On Android devices, Google Japanese Input was eventually replaced by Gboard starting around 2017. Gboard unified keyboard functionality across languages and offered enhanced voice typing and gesture-based input.

### Licensing and Availability  
While the main application is distributed under a proprietary license, parts of its infrastructure were made publicly accessible through open-source initiatives. Users can still download the latest version via the official website at [google.co.jp/ime](https://www.google.co.jp/ime/).

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## References

1. [The mozc Open Source Project on Open Hub: Languages Page. Open Hub](https://www.openhub.net/p/mozc/analyses/latest/languages_summary)
2. [Source](https://github.com/google/mozc/blob/master/docs/about_branding.md)
3. Freebase Data Dumps. 2013