For many of us, our calendar is a centre point of our life. We are seeing fewer households with a wall calender or a paper day planner to organize their schedule. Instead, more households have moved over to managing their life with a digital calendar helping them to keep track of events, appointments and everyday tasks.
As with countless other tools, you don’t need a proprietary hosted solution for your calendar needs. There might just be an open source project that’s a perfect fit.
To provide an insight into the quality of software that is available, we have compiled a list of 9 high quality terminal-based open source calendar software. Hopefully, there will be something of interest here for anyone who wants to manage their daily activities.
Here’s our verdict captured in a legendary LinuxLinks-ratings chart. Only free and open source software is eligible for inclusion.

Let’s explore the 15 calendar applications at hand. For each title we have compiled its own portal page, a full description with an in-depth analysis of its features, together with links to relevant resources.
| Terminal-Based Calendars | |
|---|---|
| calcurse | Calendar and scheduling application for the command line |
| calcure | Modern TUI calendar and task manager |
| khal | Built on the iCalendar and vdir |
| calendar.vim | Calendar application for Vim |
| vdirsyncer | Synchronizing calendars and addressbooks |
| Wyrd | Text-based front-end to Remind |
| vimalender | Terminal calendar application with vim-style keybindings |
| carl | Mimics the various cal implementations with additional features |
| ncal | Offers an alternative layout, more options and the date of Easter. |
| when | Extremely simple personal calendar program |
| TimeMap | Combines a Calendar, Diary, Todo List, Quick Note, File Manager and Tags |
| lvsk | Minimalist design and monochromatic pastel aesthetics. |
| kal | Package for finding public holidays, Easter, notable days, and more |
| calcol | Wrapper to colorize cal |
| chroncal | Manages events, tasks and journal entries |
This article has been updated to reflect the changes outlined in our recent announcement.
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