Cal.com
Scheduling infrastructure for everyone. Open source alternative to Calendly.
Why consider Cal.com?
Cal.com is the open-source scheduling platform and Calendly alternative that gives individuals and enterprise teams full control over calendar bookings, routing forms, and video integrations.
Learn Cal.com by building
Practical setup notes, real use cases, and copy-ready examples in one focused guide.
In this guide3 sections
Overview of Cal.com
Cal.com provides enterprise-grade scheduling infrastructure that can be self-hosted or embedded into SaaS applications. It connects directly with Google Calendar, Outlook, Apple Calendar, and CalDAV servers to manage meeting availability, recurring appointments, and team round-robin booking.
Self-Hosting with Docker Compose
To deploy Cal.com using Docker Compose:
git clone --recursive https://github.com/calcom/docker.git calcom-dockercd calcom-dockercp .env.example .envdocker compose up -dAccess the web interface on http://localhost:3000 to register your administrator account, connect your calendar feeds, and configure booking event types.
Embedding Booking Forms
You can embed booking links directly into web applications via the React or vanilla JavaScript embed SDK:
<script> (function (C, A, L) { let p = function (a, ar) { a.q.push(ar); }; let d = C.document; C.Cal = C.Cal || function () { let cal = C.Cal; let ar = arguments; if (!cal.loaded) { cal.ns = {}; cal.q = cal.q || []; d.head.appendChild(d.createElement("script")).src = A; cal.loaded = true; } if (ar[0] === L) { const api = function () { p(api, arguments); }; const namespace = ar[1]; api.q = api.q || []; if(typeof namespace === "string"){cal.ns[namespace] = cal.ns[namespace] || api;p(cal.ns[namespace], ar);p(cal, ["initNamespace", namespace]);} else p(cal, ar); return;} p(cal, ar); }; })(window, "https://app.cal.com/embed/embed.js", "init"); Cal("init", {origin:"https://app.cal.com"}); Cal("inline", {elementOrSelector:"#my-cal-inline", calLink: "john-doe/30min"});</script>Cal.com is distributed under the AGPL-3.0 license for self-hosted instances.
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