3 Best Open Source Clockwise Alternatives
A curated collection of the 3 best open source and self-hosted alternatives to Clockwise in 2026.
Looking for a free, privacy-friendly, or self-hosted replacement for Clockwise in 2026? The top open-source alternative is Cal.com — Fully customizable scheduling software for meetings.
Other highly rated open-source Clockwise alternatives include Rallly and Easy!Appointments.
Fully customizable scheduling software for meetings
Cal.com is a fully customizable scheduling software designed for individuals, businesses, and developers. It simplifies appointment booking with cross-calendar sync, custom booking links, automated reminders, and built-in video conferencing. - Cross-calendar sync: Automatically checks availability across multiple calendars to prevent double bookings. - Custom booking links: Create short, memorable links for easy sharing (e.g., cal.com/yourname). - Automated reminders: Send SMS or email reminders to reduce no-shows. - Built-in video conferencing: Cal Video provides seamless in-house video meetings. - Payment integration: Monetize bookings with Stripe integration. - Privacy-first design: Prioritizes data protection and security. - Multi-language support: Available in 65+ languages for global accessibility. - Embeddable booking: Easily integrate booking pages into websites or apps. - Buffer and limits: Set daily/weekly/monthly booking limits and add buffers around events. Cal.com is open-source and can be self-hosted for full control over data and infrastructure. The project is built with modern web technologies and supports deployment on various cloud platforms or on-premise servers. Self-hosting documentation is available in the cal.diy repository.
Free group meeting scheduling without logins
Rallly is the fastest and easiest way to schedule group meetings. Create a poll with proposed times, share a link, and let participants vote without needing an account. The tool automatically adjusts times for different time zones and shows the best option at a glance. - Instant Poll Creation: Set up a meeting poll in under a minute with no account required - Time Zone Support: Automatically converts times to each participant's local time zone - No Login for Voters: Participants can vote without signing up - Free Plan: 99% of users use Rallly completely free with no participant limits - Pro Features: Optional paid subscription for branding, permanent polls, and email notifications - Privacy Focused: Open source with no ads, no data selling, and automatic deletion of inactive polls - Cross-Platform: Works on desktop and mobile with a clean, responsive interface Rallly is open source and can be self-hosted. The project is built with modern web technologies and offers comprehensive documentation for deployment. Self-hosting provides full control over data and privacy while maintaining all core functionality.
Self-hosted appointment scheduling software
Easy!Appointments is a self-hosted, open-source appointment scheduler designed for simplicity and flexibility. Whether you're a small business, healthcare provider, or large organization, it streamlines booking management with customizable workflows, automated reminders, and seamless third-party integrations. - Self-hosted & Open Source: Deploy on your own server for full control and data privacy. - Customizable Workflows: Adapt to any scheduling need with flexible configurations. - Automated Reminders: Send SMS or email notifications to reduce no-shows. - Payment Integration: Support for multiple payment gateways (Stripe, PayPal, etc.). - Multi-user Support: Manage multiple providers and services effortlessly. - Reports & Analytics: Track appointments, revenue, and client activity. - Third-party Integrations: Connect with CRM, email, and calendar tools. - Multi-language & Timezone Support: Serve global audiences with ease. - WordPress/Joomla/Drupal Plugins: Extend functionality to popular CMS platforms. - Docker Support: Easy deployment with pre-configured containers. - Tech Stack: PHP, MySQL, jQuery, Bootstrap. - Self-Hosting: Fully self-hosted with Docker, Apache/Nginx, and MySQL/PostgreSQL support. - Requirements: PHP 7.4+, MySQL 5.7+, Apache/Nginx, and a web server. - Documentation: Available at https://easyappointments.org/documentation. - Community Support: Active Discord, forums, and GitHub repository for troubleshooting.
About Clockwise
Clockwise was an AI-powered scheduling assistant designed to optimize meeting times and protect focus time for teams. The product leveraged deep expertise in calendars and scheduling to help organizations like Uber, Netflix, and Atlassian create over 8 million hours of Focus Time and reschedule 23 million meetings.
Key Features of Clockwise
- Smart Meeting Rescheduling: Automatically moved meetings to better times to optimize schedules
- Focus Time Protection: Created dedicated focus time blocks to protect deep work
- AI-Powered Optimization: Used artificial intelligence to analyze calendars and suggest optimal scheduling
- Team Collaboration: Enabled teams to coordinate schedules efficiently
- Calendar Integration: Worked with major calendar platforms to sync and optimize schedules
Data & Privacy
- All user data will be deleted shortly after the shutdown on March 27, 2026
- No data transfer to Salesforce; complete data deletion upon product shutdown
- Users can export their data before the shutdown date
- Refunds provided for prepaid subscriptions extending past the shutdown date
Clockwise is transitioning to Reclaim.ai as the recommended alternative for AI-powered scheduling and calendar optimization.