# HayaKuchi - Mini Japanese IME

> A simple Japanese Input Method Editor (IME) that modifies your input on the fly as best as it can.

Canonical page: [https://chrome-stats.com/d/hayakuchi](https://chrome-stats.com/d/hayakuchi)

## Overview

- **ID:** `hayakuchi`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** HayaKuchi Dev
- **Category:** language-support
- **Daily users:** 26
- **Version:** 0.2.3
- **Last updated:** 2026-07-15
- **First published:** 2026-01-25
- **Size:** 334 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/hayakuchi/)

## Description

<strong>HayaKuchi</strong> is a Japanese Input Method Editor extension which tries to process your inputs and transform it automatically in order to write in Japanese using an alphabetical keyboard layout. In order to do so, HayaKuchi will highlight the last word you inputted and simulate a copy-paste which will replace your input with the corresponding hiraganas and katakanas.

You will also be able to query a dictionary in order to replace your current input with any similar words that can be found. HayaKuchi is also able to convert directly your characters to half-width or full-width, which may be useful on some websites that will accept one or the other.

If you have the time to do so, please review this extension on Mozilla Addons. ありがとうございます！

## Rankings

- #21,790 — Overall
- #76 — input

## Permissions and access

### Permissions

- `activeTab`
- `clipboardRead`
- `clipboardWrite`
- `storage`

### Host permissions

- `*://*.jisho.org/*`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/hayakuchi)