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 13 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 |
| 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 |
This article has been revamped in line with our recent announcement.
Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. You’ll also find interesting projects to try, hardware coverage, free programming books and tutorials, and much more. Know a useful open source Linux program that we haven’t covered yet? Let us know by completing this form. |

