Alternatives

Products that do what French Republican Calendar based on equinoxes does

1. 1
   Clockwise▲607

   Making your calendar work for you.

   2019

2. 2IB
   I built an open source web calendar inspired by the Google calendar▲232

   I love the looks and UX of the Google calendar. But I wanted to have a version I could use more freely in my own projects, still looking similar to the one from Google.

   2024 · schedule-x.dev

3. 3
   Clockwise Prism▲547

   A first-of-its-kind intelligent calendar

   2024

4. 4CR
   Calenday, real-time collaborative calendars for trip planning▲207

   2022 · calenday.co

5. 5
   Weekly Calendar in Todoist▲265

   Make a clear weekly plan with time-blocked tasks and events

   2024

6. 6
   Mayday▲198

   The AI-assisted calendar that helps you make time to thrive.

   2023

7. 7
   Timepage by Moleskine Studio▲281

   A smart calendar with weather forecasts, maps and contacts

   2015

8. 8
   Recal.dev▲365

   Resend, but for Calendar & Scheduling. API. SDK. MCP.

   Sep 2025

9. 9BA
   Building a 'liturgical lightbulb', bringing the Calendar to life▲109

   2024 · github.com

10. 10
    Calendope▲67

    Your public calendar

    2022

11. 11
    Hugo Calendar▲283

    Calendar, notes, and tasks app - make every meeting worth it

    2022

12. 12
    Lyra Chrome Extension▲179

    Automated pre-meeting research in Google Calendar.

    Dec 2025

13. 13ED
    Endoflife.date – Site with EOL dates of everything▲248

    2019 · endoflife.date

14. 14
    OI Calendar▲78

    Encrypted, decentralized alternative to Google calendar

    2019

15. 15
    CalendarPipe▲155

    Programmable calendar sync for humans and AI agents

    Apr 2026 · calendarpipe.com

16. 16
    Ártala – Jahrzähler▲3

    The Germanic lunisolar calendar: source-based, as an app.

    Jul 2026 · jahrzaehler.de

17. 17
    Thirty Calendar▲153

    The best ai calendar to organize your work and life.

    Sep 2025

18. 18
    Calbert▲109

    Creates calendar events that fill in their own settings.

    2016

19. 19MC
    Minimalist Calendars Generator▲87

    2023 · useminimal.com

20. 20CD
    Calendar Date Converter – For Gregorian, Lunar, Hebrew, Islamic etc.▲7

    2021 · stephenweixu.github.io

21. 21RC
    ReCalendar – custom calendar generator for ReMarkable and e-ink tablets▲16

    2022 · recalendar.me

22. 22
    Automatic out-of-office calendar▲94

    Just mark your calendar as OOO, we take care of the rest

    2020

23. 23
    Mornin▲79

    Smart categorization for your calendar events

    2021

24. 24OC
    OpenSCAD configurable calendar 3D model▲55

    I created a highly configurable calendar 3D model using OpenSCAD. This project uses Zeller’s Congruence to automatically adjust the calendar layout for any year. Just change the year in the configurator, and the model updates accordingly. The link contains a little more of the backstory and the downloadable model from a 3rd-party site, additionally the full source code is included in the post. Some highlights: - Implemented date calculations entirely in OpenSCAD (with no built-in date support, which was challenging but fun). - Customizable layout, multi-material printing support, and…

    2025 · chrastecky.dev

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