Everything you need to keep your calendars in sync

Changes on either calendar are reflected on the other. Add an event on Google, it appears on Outlook, and vice versa.

Push events from one calendar to another without syncing back. Great for sharing availability from a personal calendar to work.

Creates simple "Busy" blocks on your other calendar so nobody can book over your existing events. No event details are shared.

Copies full event details (title, time, description) across calendars so you see everything in one place.

Pro subscribers get real-time updates via webhooks. When you add or change an event, it syncs within seconds.

Free accounts sync every 30 minutes automatically. No manual action needed once you set up a sync pair.

Connect Google Calendar, Microsoft Outlook, Apple Calendar, Yahoo, Fastmail, and Zoho. Mix and match any combination.

All tokens encrypted at rest with AES-256. We use OAuth so we never see your password. Minimal data access, maximum security.

See exactly what was synced, when, and in which direction. Undo any sync with a single click if something goes wrong.

Pro users can connect as many calendars as they need and create unlimited sync pairs between them.

CalendarSync runs in the cloud. Once set up, it works whether your phone, laptop, or tablet is on or off.

Trigger syncs, list connections, and manage pairs programmatically. Integrate CalendarSync into your own workflows.

Share your availability with a simple link and let clients or colleagues book time with you. No back-and-forth needed.

Attach notes and action items to any synced meeting. Keep context alongside your calendar so nothing falls through the cracks.