SlashBooking is a WordPress plugin designed to add a customizable booking calendar to WordPress sites, with a focus on real-time, bidirectional synchronization with Google Calendar. The tool enables users to integrate a reservation system directly into their website, allowing clients to book available slots, which are immediately reflected in the connected Google Calendar. Any new events added to Google Calendar, such as personal appointments or time blocks, automatically make those times unavailable for new bookings on the site, helping to prevent double bookings.
The plugin offers a range of features tailored for professionals and businesses that manage appointments or reservations, including coaches, therapists, hairdressers, guesthouses, restaurants, clinics, artisans, and consultants. It allows for extensive customization of the booking calendar, such as adjusting colors, time slots, durations, opening days, and minimum notice periods to match the business’s branding and operational needs. Email confirmations are sent automatically and can be fully personalized with the business’s branding, including custom text, colors, and logos. The tool also supports automatic reminder emails to clients before their appointments to help reduce no-shows. Bookings can be accepted or declined with a single click directly from the confirmation email or from the WordPress dashboard.
SlashBooking emphasizes data privacy by storing all client and booking data within the user’s own WordPress database, with no intermediaries or commissions on reservations. org directory or uploaded as a zip file, and the calendar can be embedded on any page using a block or shortcode. Connecting to Google Calendar is handled via a simple authorization button.
The service is available in both a free and a paid Pro version. The free plan includes the customizable calendar, email confirmations, and booking validation. 88€ per year, adds features such as bidirectional Google Calendar sync, anti-spam protection with Turnstile, fully customizable emails, automatic email reminders, and priority support. Payment for the Pro plan is processed via Stripe, and the subscription can be canceled at any time.
In the Calendar & scheduling space, SlashBooking takes a focused approach. It focuses on scheduling and managing appointments online without relying on third-party SaaS or recurring fees. It is built as a B2B product for small businesses and service providers using WordPress. SlashBooking follows a freemium model. It runs on the web and the command line.
It is developed by slashbooking, and the product first shipped in 2026. PulseGate's similarity index finds few close equivalents — SlashBooking occupies a relatively distinct niche. Key capabilities include appointment booking, real-time calendar, and email confirmation. The interface is available in English and Spanish.
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SlashBooking discovered by the PulseGate indexer
