Reservation Calendar by BERYL

Choose a business day and select time slots with clicks, dragging, or accessible start/end selectors. Calendar availability never exposes customer contact information.

• 30 or 60 minute slots; business hours continuing after midnight.
• Booking buffer, lead time, booking horizon, weekly closing days and exceptional holidays.
• Resources managed as facilities or staff, with free-form descriptions.
• Customer name, phone, email, notes and up to ten optional custom text fields.
• Customer and administrator email templates using WordPress wp_mail.
• Three styles and accent color. The separately distributed Pro add-on includes a custom CSS editor.
• Resource-wide database locks to serialize concurrent reservation requests.
• Administrator booking list, date/time and resource changes, and cancellation; personal data export and anonymization through WordPress privacy tools.

The plugin makes no Stripe requests and requires no paid subscription. The optional Pro add-on is distributed separately at https://license.beryl-studio.jp/. The free plugin does not require an account or license and does not contact the license service.

Languages

The calendar automatically follows the visitor browser language (Japanese or English), without a visible language switcher.
To explicitly choose the shortcode language, use [yoyakuflow language=”en”] / [yoyakuflow language=”ja”].
Admin screens follow the WordPress user locale. A readable Japanese JSON fallback is included for browser-language selection. Directory translations can be supplied through translate.wordpress.org.
Facility names, descriptions, profile fields and booking fields use the labels entered by the administrator. There are no separate English content fields. Japanese and English customer email templates use the content entered by the administrator.
Only plugin content is switched; theme navigation, page titles and native date-picker language follow their own settings.

Week view

The All tab automatically allocates a published facility / staff member that is free for the entire selected range, using administrator resource order. Availability is rechecked under a database lock on submission. The confirmation and emails name the assigned resource. Selecting an individual tab restricts the booking to that resource. Closed days, shifts, overnight hours and buffers still apply. Each date column has a configurable 70–240px minimum width and the schedule scrolls horizontally on narrower screens. The optional monthly date picker can be hidden in Display settings.

Source code

All JavaScript and CSS files in assets/ are the original, human-readable source. They are shipped directly without compilation, bundling, or minification. No build tools or third-party JavaScript libraries are required. assets/messages.json and assets/ja.json are editable source dictionaries for browser-language support. WordPress.org translation packages take precedence for WordPress interface translations.