WordPress guestbook display plugin Gwolle Guestbook Japanese localization

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update Last updated: June 27, 2026 at 11:33 AM

A plugin for displaying guestbooks in WordPress " Gwolle Guestbook I have created a translation file for localizing `` into Japanese. You can also download it from this page.
It is not perfect yet, but the source (.po file) is also included, so if you need it, please feel free to modify and compile the source.

You can download it by clicking on the link below.

📥 gwolle-gb-ja.zip


When you unzip the zip file above, it will be expanded to the following file.

  • gwolle-gb-ja.mo
  • gwolle-gb-ja.po


You can use it immediately by transferring the above two files to "gwolle-gblang" in the plugin directory by FTP.

2021.08.26 Added
For downloading the latest translation file, please refer to the following Get PTE permissions Please refer to the chapter.

2026.06.23 Added
The Japanese localization of Gwolle Guestbook is currently complete, so the latest translation files will be automatically downloaded from WordPress. Therefore, there is no need to manually download translation files.

In the following article, we will introduce the details of the localization work so far in chronological order.
In addition, the various operation buttons of the guestbook will be displayed clearly even with a theme with a black background, and we will also release CSS that is compatible with the latest version of Gwolle Guestbook.

The last chapter also shows the default email settings in the notification tab in configuring Gwolle Guestbook v5.02.

Japaneseization of the setting screen

The above is the setting screen of Gwolle Guestbook in Japanese, but it is still incomplete.
The cause may be the lack of items in the translation file and the Gwolle Guestbook program not supporting it.
As will be described later, in the current WordPress system, translation data is managed in the cloud called GlotPress. is not reflected.
The person who has authority to approve WordPress translations is led by Automattic, and the number of people is limited.

2021.08.07 Update
Fixed the translation file. The fixes are as follows: It will be updated periodically thereafter.

  • "エントリ” → “投稿"

2021.09.15 Update
Replaced the translation file with the latest version. Currently, all pages including his ReadMe page of the plugin have been translated into Japanese.
In addition, since the translation achievement rate on GlotPress has reached 100% and the translation file is automatically delivered, it is no longer necessary to download the translation file from this site.

Japanese translation of guestbooks

The above is the guestbook screen. This screen corresponds to japaneseization to some extent.
I think that it is good to edit the translation file according to the purpose of use.

The translation file can be edited with a utility called Poedit shown in the link below.
You can edit it by reading the downloaded translation file "gwolle-gb-ja.po".

About Gwolle Guestbook

Gwolle Guestbook is a very advanced plug-in that supports emoticons, Ajax functions, import/export of post data, etc. With the import function, it is also possible to take over the DMSGuestbook database.

Anti-spam features are standard for honeypot, Nonce, and Akismet, and captcha functionality is also available by installing the plug-in Really Simple CAPTCHA.
Unfortunately, it does not support Japanese, and anti-spam does not support reCAPTCHA. I would recommend this plugin.

Support on the plugin side

The other day, I posted about creating a Japanese translation file for Gwolle Guestbook on the above WordPress forum.
Therefore, I received a reply from the plugin author, but it seems that the translation files of WordPress itself, themes, and plugins cannot be released as official translations unless they are registered in an open system called GlotPress.

Anyone with a WordPress account can submit a translation proposal for GlotPress, but it will not be reflected unless it is checked by GTE (General Translation Editor) and PTE (Project Translation Editor). It turns out that it won't.
Since Marcel Pol, the author of Gwolle Guestbook, does not have the authority, I think that the formal Japanese support of the plugin is still in the future due to the procedure.

If the translation proposal to GlotPress is approved, the GlotPress system will automatically create a translation file (*.po,*.mo) and it will be included in the plugin release. is.

The following links are the Gwolle Guestbook plugin translation approval status for all languages ​​and the Japanese translation page on GlotPress.
It seems that Marcel imported the translation file I created into GlotPress, and at the time of writing this article, 9% of the Japanese translations have been approved.
Note that if the percentage of this approved translation completes reaches a certain rate (for example, 90% or more), it will not be reflected in the release. When the specified rate is reached, the language package is reflected in the release.

The link below is the approved Japanese translation of the Gwolle Guestbook plugin on GlotPress.
When I checked, I found a problem, so I suggested two corrections.

As for the corrected content, first of all, "at → 場所". This indicates the time written to the guestbook and has been corrected to "at → -" because it is clearly a strange translation. However, I think that it is good to remain "at" here.

Next is "of → の". This seems to be a word used in the entry display screen "Displaying: 1 – 5 of 5" of the guest book in the settings, but this is "of → /" because the meaning is reversed in Japanese grammar if it is "の".

It is not clear what time these corrections will be approved.

Currently, there is a proposal from the author, and we are also considering obtaining PTE in order to promptly reflect the revised contents.

In fact, this translation file is a limited version created only for japanese display of guestbooks, and only 176 are registered.
At present, there are 716 total translations of Gwolle Guestbook, as shown in the link below, and I think that it will take time to translate all of them.
If you have time, you can download the translation file from "Export" at the bottom of the screen below and create it for yourself in Poedit.


2025.05.28 Added
Regarding the translation of "at" above, the translation of "-" cannot be denied that it feels strange, so I changed the translation to "@". Well, it also means the same thing when left as "at" 💦
As we will explain later, we made changes in GlotPress, so the translation file will be delivered from WordPress at a later date.

Added on 2021.08.25 / Updated on 2025.05.29

Get PTE permissions

Today, the acquisition of PTE rights has been approved as follows: By doing this, I think that the localization (Japaneseization) of this plug-in will proceed more smoothly.

As pointed out by GTE's Naoko in the thread linked above, when it comes to localization of WordPress, it is said that it is necessary to follow the translation style guide established by translation teams in each country. Below is a guide to the Japanese translation style.

The latest version of the Japanese translation file can be downloaded from the following GlotPress page (Translated).

2021.08.30 Added

Translation work is complete!

As you can see in the link below, today we have finished all the Japanese translation work for the Gwolle Guestbook plugin on GlotPress. All translations were written according to the GlotPress rules.
After obtaining PTE authority, the translation work progressed, and in about 5 days, a total of 1,687 translations of the plug-in itself and the ReadeMe page were completed. Since the translation achievement rate has reached 100%, the Japanese page is now automatically displayed. I think that the language package will be bundled at the time of release as well.

In addition, already, I have not finished the verification of the details such as abnormal systems, but I have completed a syntax check in Poedit (some translation sentences include exceptions) and a simple check by checking the operation of the normal system of the plug-in.

I think that there are a few people who use it, but in the future, GlotPress will accept requests for translation corrections by contributors from time to time, so thank you for your cooperation.

2025.03.02 Added

Gwolle Guestbook button redesign

Gwolle Guestbook Button Design

The button design of the Gwolle Guestbook input form can be changed with additional CSS definitions.
For this site, which has a black background, the buttons will not be visible if the plug-in's default settings are used, so the design will need to be changed using additional CSS.
The button in the featured image defines the following CSS:

/*
	Gwolle Guestbook ボタンのデザイン変更
*/
.gwolle-gb-write-button input {
	font-size: 9pt !important;
}
.gwolle-gb-write-button {
	.button {
		display       : inline-block;
		border-radius : 5px;				/* 角丸 */
		font-size     : 9pt;			  /* 文字サイズ */
		text-align  	: center;		  /* 文字位置 */
		cursor        : pointer;		/* カーソル */
		padding       : 12px 12px;	/* 余白 */
		background    : #000066;  	/* 背景色 */
		color         : #ffffff;    /* 文字色 */
		line-height   : 1em;				/* 1行の高さ */
		transition    : .3s;        /* なめらか変化 */
		box-shadow    : 0px 0px 8px #666666;  /* 影の設定 */
		border        : 2px solid #000066;    /* 枠の指定 */
  }
	.button:hover {
		box-shadow  : none;     /* カーソル時の影消去 */
		color       : #000066;	/* 背景色 */
		background  : #ffffff;  /* 文字色 */
	}
}

2026.06.23 Added
With the release of Gwolle Guestbook 5.0.1, add-on functionality has been implemented as standard, and it is now possible to add a preview button and upload images to the guestbook.
Along with that, I also added the following CSS.

/* アップロードボタン */
.button.gwolle-gb-addon-upload-button {
	 background : #000066;
	 border-color : #666666;
	 color : #A0A0A0;
	 font-size : 10pt;
}
/* 送信ボタン */
.button.gwolle_gb_submit {
	 font-size : 10pt;
}
/* プレビューボタン */
.button.gwolle_gb_preview {
	 background : #000066;
	 border-color : #666666;
	 color : #A0A0A0;
	 font-size : 10pt;
}

2026.06.25 Added

About default email settings in notification tab in Gwolle Guestbook 5.0.2 settings

Even if you update the Gwolle Guestbook plugin, if the email settings in the notification tab are registered in the DB, the old settings will remain and will not be updated to the latest version.
For your reference, the default email settings in the notification tab in the latest version of Gwolle Guestbook (as of 2026.06.25: v5.0.2) are shown below.

Contents of administrator email

こんにちは。

%blog_name% に新しいゲストブック投稿があります。
%entry_management_url% で確認できます。

良い1日を。
あなたのGwolle-GB-Mailer


ウェブサイトアドレス : %blog_url%
ユーザー名 : %user_name%
ユーザーのメールアドレス : %user_email%
投稿ステータス : %status%
投稿内容 :
%entry_content%

Contents of poster email

こんにちは。

%blog_name% に新しいゲストブック投稿が記帳されました。

良い1日を。
%blog_name% の編集者。


ウェブサイトアドレス : %blog_url%
ユーザー名 : %user_name%
ユーザーのメールアドレス : %user_email%
投稿内容 :
%entry_content%

Moderation email content

こんにちは。

管理者があなたのゲストブックの投稿を %blog_name% でモデレートしました。

良い一日を。
%blog_name% の編集者。


ウェブサイトアドレス : %blog_url%


%date% に記帳された元の投稿 :
%entry_content%

Contents of administrator reply email

こんにちは。

管理者が %blog_name% のゲストブック投稿に返信メッセージを追加または変更しました。

良い1日を。
%blog_name% の編集者。


ウェブサイトアドレス : %blog_url%
管理者の返信 :
%admin_reply%


%date% に記帳された元の投稿 :
%entry_content%

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