Sync your Google Calendars
One-way or two-way. One-to-many or many-to-one. Keep your calendars in sync automatically — you set the rules.
Sign in with GoogleFree to use · No credit card required
Aggregated calendar events sync to individual calendars by color
How it works
Get up and running in under a minute. No complicated setup required.
Connect
Sign in with Google to securely link your calendars. We only request the permissions we need.
Configure
Pick your calendars, choose sync direction, and set color-based mapping rules to control what goes where.
Sync
Changes flow automatically in real time. Create, update, or delete events — they stay in sync.
Everything you need
Powerful sync features, simple configuration. No spreadsheets, no scripts, no headaches.
Flexible Sync Directions
One-way or two-way sync between calendars — you choose the direction for each rule.
Multi-Calendar Support
Sync one calendar to many, or many to one. Not limited to pairs — build the topology you need.
Color Filtering
Filter which events to sync by calendar color. Route events from an aggregated calendar to the right destination.
Real-Time Updates
Webhook-driven sync ensures your calendars stay up to date within seconds of any change.
Simple Setup
Connect your Google account, pick your calendars, set your rules — done. No technical knowledge required.
Your data stays yours
We take privacy seriously. CalendSync is designed to do the minimum necessary to keep your calendars in sync.
No event content stored
Only event IDs and sync tokens are persisted
No third-party sharing
Your calendar data is never sold or shared
Minimal permissions
We only request the scopes needed to sync
Google API compliant
Fully compliant with Google's API Services User Data Policy
Ready to sync your calendars?
Connect your Google account and set up your first sync rule in under a minute.
Get started with GoogleFree to use · Set up in 60 seconds