Keeper icon
Keeper icon

Keeper

Keeper is an open-source calendar syncing tool that can be used to sync the blocks of time marked as "busy" on your personal, work, business and school calendars.

The integrations panel where users manage calendar sources (e.g. iCloud, Google Calendar, FastMail) and destinations to push synced events to, with live connection status and event counts.

Cost / License

  • Freemium (Subscription)
  • Open Source (AGPL-3.0)

Application type

Platforms

  • Online
The main dashboard displaying upcoming busy/free time blocks aggregated from multiple calendars, organized by day.
Keeper's landing page showcasing its core features: calendar aggregation, event anonymization, iCal feed export, push syncing, and self-hosting support.?
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Keeper's sign-in screen, supporting Google OAuth or email/password authentication.
Keeper alternatives  
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Features

Integrations

  1.  Calendar
  2. Apple Calendar icon  iCal
  3. iCloud icon  ICloud
  4. Microsoft Outlook icon  Outlook

Features

  1.  Dark Mode
  2.  Passkey Support
  3.  Calendar View
  4. Google Calendar icon  Sync with Google Calendar
  5.  Cloud Sync
  6.  Sync with iCloud
  7.  Shared Calendar
  8.  Calendar Sync

 Tags

Keeper News & Activities

Highlights All activities

Recent activities

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Google Calendar

Manage events efficiently with device syncing, Gmail integration, event reminders, and shareable schedules on a user-friendly interface with dark mode.

 
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Keeper information

  • Developed by

    CA flagRida F'kih

  • Licensing

    Open Source (AGPL-3.0) and Freemium product.

  • Pricing

    Subscription that costs $5 per month + free version with limited functionality.

  • Written in

  • Alternatives

    11 alternatives listed

  • Supported Languages

    • English

AlternativeTo Categories

Office & Productivity, Remote Work & Education, Security & Privacy, Backup & Sync

GitHub repository

  •  402 Stars
  •  12 Forks
  •  35 Open Issues
  •   Updated  
View on GitHub

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Keeper was added to AlternativeTo by Rida F'kih on and this page was last updated .
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What is Keeper?

Keeper is an open-source tool for syncing and aggregating calendar events.

• Aggregate calendars — Combine events from multiple calendar sources into a single, unified feed.

• Privacy-focused — Event details are stripped, showing only busy/free times to protect your privacy. • Shareable iCal link — Generate a shareable iCal link that stays in sync with your sources. • Push events — Automatically push aggregated events to Google Calendar and other calendar services. • Self-hostable — You can run it on your own infrastructure. It's fully open-source under the AGPL-3.0 license.

It's built by Rida F'kih and the source code is available on GitHub. It offers a free tier for personal use and a paid tier for power users.

Official Links

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