CalendarPipe
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CalendarPipe

Smart calendar sync. Create pipes to filter, transform, and sync events between Google Calendar, Outlook, and Apple Calendar.

© 2026 CalendarPipe. Indie-built in Prague.

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  • Clockwise Alternative
  • Reclaim.ai Alternative
  • OneCal Alternative
  • CalendarBridge Alternative
  • SyncThemCalendars Alternative
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CalendarPipe vs the competition

See how CalendarPipe compares to other calendar sync tools. Programmable rules, Apple Calendar support, and a free-forever plan.

Clockwise

Clockwise is shutting down. Your calendars still need to talk to each other.

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Reclaim.ai

Reclaim does a lot. Maybe too much. CalendarPipe just syncs — and does it right.

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OneCal

OneCal syncs calendars. CalendarPipe lets you program how they sync.

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CalendarBridge

CalendarBridge syncs your calendars. CalendarPipe lets you program the sync.

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SyncThemCalendars

SyncThemCalendars keeps it simple. CalendarPipe keeps it programmable.

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Why CalendarPipe?

Most calendar sync tools copy events from A to B. CalendarPipe lets you decide what moves, how it looks, and who sees it.

  • Google Calendar, Outlook, and Apple Calendar — all first-class
  • Programmable sync rules: filter, transform, route events with code
  • Visual builder, AI builder, or code editor — your choice
  • Invitation-based delivery — no app needed on the other end
  • REST API, CalDAV access, MCP server for AI agents
  • Free forever plan. Pro at $4/month. No hidden fees.
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