This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.



YarakuZen is an online service that helps translators manage their translation. You can use machine translation through it, and you can also send orders to professional translators. Plus, YarakuZen provides smart and powerful translation memory that should be a great help when you translate.

This WordPress plugin is officially supported by Yaraku, the operating company of YarakuZen.

Getting Started with YarakuZen

First, set up an account for a API key. Then copy the key into the WordPress admin menu (‘Settings’ > ‘YarakuZen’).

You’ll find the YarakuZen box added to the editor screen for posts and pages. You can send your text to through it.

Available Languages

Currently the following languages are supported for the translation source and target.

  • English
  • Japanese
  • Chinese (Simplified)
  • Chinese (Traditional)
  • Korean
  • French
  • German
  • Spanish
  • Italian
  • Swedish
  • Portuguese
  • Indonesian
  • Vietnamese
  • Thai
  • Malay
  • Filipino
  • Hindi


  1. Upload the entire yarakuzen folder to the /wp-content/plugins/ directory.
  2. Activate the plugin through the ‘Plugins’ menu in WordPress.


Installation Instructions
  1. Upload the entire yarakuzen folder to the /wp-content/plugins/ directory.
  2. Activate the plugin through the ‘Plugins’ menu in WordPress.


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Contributors & Developers

“YarakuZen” is open source software. The following people have contributed to this plugin.


“YarakuZen” has been translated into 8 locales. Thank you to the translators for their contributions.

Translate “YarakuZen” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.



  • Introduces yarakuzen_api_base_url filter hook.
  • Introduces YARAKUZEN_APP_URL constant and yarakuzen_app_url filter hook.
  • Introduces YarakuZen::trademark() and yarakuzen_trademark filter hook.


  • Confirmed compatibility with WordPress 4.9.
  • Compliance with coding standards, accessibility of markup, and UI consistency have been improved.


  • Confirmed compatibility with WordPress 4.6.


  • Require WordPress 4.4 or higher.
  • Add a HTTP header “User-Agent: YarakuZen WordPress Client” to each request to the YarakuZen API.
  • Add a link on a Post editor page to the corresponding translation editor page on YarakuZen.
  • Allow to send a callback request for update from YarakuZen.
  • Removed Japanese translation in favor of translating on