Cal.com is the leading open-source scheduling platform — offering Calendly-like functionality with full self-hosting capability and greater data control for privacy-conscious B2B teams.
• Open-source codebase with self-hosting option
• Booking pages, round-robin, and team scheduling
• Extensive integration library including CRMs and video tools
• Custom workflows and automated reminders
• White-labelling available on paid plans
Cal.com is the open-source alternative to Calendly, and it's grown rapidly. The self-hosted option gives engineering teams full data control, which matters for privacy-sensitive companies. The cloud version is a genuine Calendly competitor at a lower price point. It's not as polished as Calendly for out-of-the-box use, but the trajectory is impressive.
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