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Open Source Calendar App

Stay organized all year with this free Open Source Calendar App. Designed for easy printing on standard A4 and Letter paper, it gives you a clean, at-a-glance view of your schedule. Click any image to download the full-size version instantly — no sign-up or account needed.

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Found this new app on Fdroid Its called MyBrain, a productivity app for tasks, notes, calendar, diary and bookmarks! : r/fossdroidBest calendar apps of 2023 | TechRadarBest calendar apps of 2023 | TechRadarCalendar Sync Tools | AlternativeToCalendar Sync Tools | AlternativeToBest Alternatives for Google Calendar - GizmochinaBest Alternatives for Google Calendar - GizmochinaBest Open Source Android Calendar Apps For Privacy in 2022Best Open Source Android Calendar Apps For Privacy in 2022Best Free and Open Source Alternatives to Apple Calendar - LinuxLinksBest Free and Open Source Alternatives to Apple Calendar - LinuxLinksFlexibits | Fantastical | The calendar and tasks app you won't be able to live without.Flexibits | Fantastical | The calendar and tasks app you won't be able to live without.Best 12 Free Open-source Calendars apps for macOSBest 12 Free Open-source Calendars apps for macOSGitHub - klazuka/Kal: A calendar component for the iPhone (the UI is designed to match MobileCal)GitHub - klazuka/Kal: A calendar component for the iPhone (the UI is designed to match MobileCal)Open-Source JavaScript Calendar | DayPilot for JavaScript - Calendar, Scheduler and Gantt Chart Web ComponentsOpen-Source JavaScript Calendar | DayPilot for JavaScript - Calendar, Scheduler and Gantt Chart Web ComponentsTop 10 Open Source Productivity Android Apps - AndroidFOSSTop 10 Open Source Productivity Android Apps - AndroidFOSSOpen Source iOS Daily Calendar Component With Customizable Cells For EventsOpen Source iOS Daily Calendar Component With Customizable Cells For EventsBest Open Source Android Calendar Apps For Privacy in 2022Best Open Source Android Calendar Apps For Privacy in 2022AJAX Event Calendar for Java and jQuery (Open-Source) | DayPilot CodeAJAX Event Calendar for Java and jQuery (Open-Source) | DayPilot CodeHow to Integrate Custom Calendar Event Creation In a React Native Crowdbotics AppHow to Integrate Custom Calendar Event Creation In a React Native Crowdbotics App26 Best Free Open-source Calendar Apps for Windows, Linux, and macOS26 Best Free Open-source Calendar Apps for Windows, Linux, and macOSAngularJS Event Calendar/Scheduler - CodeProjectAngularJS Event Calendar/Scheduler - CodeProjectHomepage - Teamup Calendar - Get organized. 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How to Use This Open Source Calendar App

  1. Pick your designBrowse the gallery and choose the Open Source Calendar App layout that suits your style — minimalist, colorful, or professional.
  2. Download the imageClick the Download button to save the full-resolution image to your device.
  3. Print it outOpen the image in any photo viewer or browser and print on A4 or Letter paper. Select 'Fit to page' for the best result.
  4. Fill in your datesWrite in your appointments, deadlines, and events. Use a pen, marker, or printed insert depending on your preference.

Frequently Asked Questions

Is this Open Source Calendar App really free to download?

Yes, completely free. Click any image, hit Download, and print — no account, email, or payment required.

What paper size should I use?

All calendar templates are designed for A4 (210 × 297 mm) and US Letter (8.5 × 11 in). Set your printer to 'Fit to page' or 'Shrink to fit' for the best result.

Can I use this 2026 calendar for my business or classroom?

Yes. These templates are free for personal, educational, and professional use. Print as many copies as you need.