Alternatives
Cal.com
Open scheduling infrastructure with deeper customization and self-hosting options.
Cal.com is an open-source scheduling platform that positions itself as scheduling infrastructure for absolutely everyone — individuals, teams, and developers who embed scheduling into their own products. Unlike closed SaaS schedulers, its full codebase is publicly available on GitHub and can be self-hosted, giving organizations complete control over data and branding.
The hosted service offers a free-forever individual plan with unlimited event types, and feature parity with Calendly is broad: round robin and collective team events, routing forms, workflow automations, Stripe and PayPal payments, and integrations with Zoom, Google Meet, Microsoft Teams, Salesforce, and HubSpot among 100+ apps. There is even a built-in Calendly import tool. For developers, Cal.com provides a documented API, embeds, and pre-built React components for white-labeled scheduling inside third-party apps.
Paid team plans add managed event types, branded booking pages, and booking analytics, while the organization tier brings SAML SSO, SCIM provisioning, and compliance features. Apps are available for iOS, Android, macOS, Windows, Linux, and major browsers, with support for 65+ languages — making Cal.com the default pick for ops-heavy teams and companies that treat scheduling as core infrastructure.
Teams and developers that need flexible, self-hostable scheduling infrastructure with deep customization and API control.