Title: OneCode Login
Author: oaron
Published: <strong>2026年1月5日</strong>
Last modified: 2026年1月5日

---

プラグインを検索

![](https://s.w.org/plugins/geopattern-icon/onecode-login.svg)

# OneCode Login

 作者: [oaron](https://profiles.wordpress.org/oaron/)

[ダウンロード](https://downloads.wordpress.org/plugin/onecode-login.zip)

 * [詳細](https://ja.wordpress.org/plugins/onecode-login/#description)
 * [レビュー](https://ja.wordpress.org/plugins/onecode-login/#reviews)
 *  [インストール](https://ja.wordpress.org/plugins/onecode-login/#installation)
 * [開発](https://ja.wordpress.org/plugins/onecode-login/#developers)

 [サポート](https://wordpress.org/support/plugin/onecode-login/)

## 説明

OneCode Login provides a modern, passwordless authentication experience for your
WordPress site. Instead of traditional passwords, users receive a secure 6-digit
verification code via email.

#### Key Features

 * **Passwordless Authentication** – Users log in with just their email address
 * **6-Digit Verification Codes** – Secure, time-limited codes sent via email
 * **Rate Limiting** – Built-in protection against brute force attacks
 * **Request ID Binding** – Each code is bound to a specific login session for enhanced
   security
 * **Neutral Feedback** – Prevents user enumeration attacks by not revealing if 
   an email exists
 * **Customizable** – Configure expiry times, cooldowns, and email templates
 * **Accessible** – Full keyboard navigation and screen reader support
 * **Gutenberg Block** – Easy to add login forms to any page
 * **Shortcode Support** – Use [onecode_login] anywhere
 * **wp-login.php Integration** – Optionally replace the default WordPress login

#### Security Features

 * Cryptographically secure code generation
 * Configurable code expiry (default: 10 minutes)
 * Resend cooldown to prevent spam
 * IP-based and email-based rate limiting
 * Automatic lockout after failed attempts
 * Codes are single-use and invalidated after successful login

#### Use Cases

 * Membership sites where password fatigue is an issue
 * Customer portals requiring simple authentication
 * Internal tools where security without complexity is needed
 * Any site wanting to improve user experience

## スクリーンショット

 * [[
 * Admin settings page with all configuration options
 * [[
 * Email input form for passwordless login
 * [[
 * 6-digit verification code entry screen

## ブロック

このプラグインは1個のブロックを提供します。

 *   OneCode Login

## インストール

 1. Upload the `onecode-login` folder to `/wp-content/plugins/`
 2. Activate the plugin through the Plugins menu in WordPress
 3. Go to Settings > OneCode Login to configure options
 4. Add the login form using the [onecode_login] shortcode or Gutenberg block

#### Shortcode Options

 * `redirect_to` – URL to redirect after successful login
 * `button_text` – Custom text for the send code button
 * `verify_text` – Custom text for the verify button

Example: `[onecode_login redirect_to="/dashboard" button_text="Get Code"]`

## FAQ

### Does this replace password login completely?

By default, no. OneCode Login works alongside traditional password login. However,
you can enable the “Replace wp-login.php” option to use OneCode Login as the primary
login method.

### What happens if the email does not arrive?

Users can request a new code after the cooldown period (default: 60 seconds). Check
your server email configuration if emails consistently fail to deliver.

### Is this secure?

Yes. The plugin uses cryptographically secure random number generation, time-limited
codes, rate limiting, and request binding to prevent various attack vectors.

### Can I customize the email template?

Yes. Go to Settings > OneCode Login > Email tab to customize the subject and body
of verification emails. You can use placeholders like {code}, {expires}, {site_name},
and {user_email}.

### Does it work with multisite?

The plugin is designed for single-site installations. Multisite compatibility may
be added in future versions.

### What if a user does not have an account?

The plugin only allows existing users to log in. For security reasons, it does not
reveal whether an email address has an account – users always see the same “check
your email” message.

## 評価

![](https://secure.gravatar.com/avatar/649d8bddb6156460ecb0ee0150168ee9d0d8573065bb564894c943d47a542501?
s=60&d=retro&r=g)

### 󠀁[I really like this plugin. It has a lot of potential.](https://wordpress.org/support/topic/i-really-like-this-plugin-it-has-a-lot-of-potential/)󠁿

 [painlessseo](https://profiles.wordpress.org/painlessseo/) 2026年3月2日

The developer clearly understands real-world needs and built something that actually
solves practical problems.Looking forward to the developer adding even more features
in future updates.Thank you for making this plugin!

 [ 1件のレビューをすべて表示 ](https://wordpress.org/support/plugin/onecode-login/reviews/)

## 貢献者と開発者

OneCode Login はオープンソースソフトウェアです。以下の人々がこのプラグインに貢献
しています。

貢献者

 *   [ oaron ](https://profiles.wordpress.org/oaron/)

[“OneCode Login” をあなたの言語に翻訳しましょう。](https://translate.wordpress.org/projects/wp-plugins/onecode-login)

### 開発に興味がありますか ?

[コードを閲覧](https://plugins.trac.wordpress.org/browser/onecode-login/)するか、
[SVN リポジトリ](https://plugins.svn.wordpress.org/onecode-login/)をチェックする
か、[開発ログ](https://plugins.trac.wordpress.org/log/onecode-login/)を [RSS](https://plugins.trac.wordpress.org/log/onecode-login/?limit=100&mode=stop_on_copy&format=rss)
で購読してみてください。

## 変更履歴

#### 1.0.0

 * Initial release
 * Passwordless login with 6-digit verification codes
 * Rate limiting and brute force protection
 * Customizable email templates
 * Gutenberg block and shortcode support
 * wp-login.php integration option
 * Full accessibility support

## メタ

 *  バージョン **1.0.0**
 *  最終更新日 **3か月前**
 *  有効インストール数 **10+**
 *  WordPress バージョン ** 5.8またはそれ以降 **
 *  検証済み最新バージョン: **6.9.4**
 *  PHP バージョン ** 7.4またはそれ以降 **
 *  言語
 * [English (US)](https://wordpress.org/plugins/onecode-login/)
 * タグ
 * [authentication](https://ja.wordpress.org/plugins/tags/authentication/)[email](https://ja.wordpress.org/plugins/tags/email/)
   [login](https://ja.wordpress.org/plugins/tags/login/)[otp](https://ja.wordpress.org/plugins/tags/otp/)
   [passwordless](https://ja.wordpress.org/plugins/tags/passwordless/)
 *  [詳細を表示](https://ja.wordpress.org/plugins/onecode-login/advanced/)

## 評価

 5つ星中5つ星

 *  [  1 5-星レビュー     ](https://wordpress.org/support/plugin/onecode-login/reviews/?filter=5)
 *  [  0 4-星レビュー     ](https://wordpress.org/support/plugin/onecode-login/reviews/?filter=4)
 *  [  0 3-星レビュー     ](https://wordpress.org/support/plugin/onecode-login/reviews/?filter=3)
 *  [  0 2-星レビュー     ](https://wordpress.org/support/plugin/onecode-login/reviews/?filter=2)
 *  [  0 1-星レビュー     ](https://wordpress.org/support/plugin/onecode-login/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/onecode-login/reviews/#new-post)

[すべてのレビューを見る](https://wordpress.org/support/plugin/onecode-login/reviews/)

## 貢献者

 *   [ oaron ](https://profiles.wordpress.org/oaron/)

## サポート

意見や質問がありますか ?

 [サポートフォーラムを表示](https://wordpress.org/support/plugin/onecode-login/)