chroncal is a terminal-based calendar application with an interactive text user interface and a comprehensive command-line interface. It stores calendar data locally in SQLite while supporting standard calendar formats and remote synchronisation.
The application manages events, tasks and journal entries. Its TUI offers month, week, day and agenda views, while its CLI provides scriptable access with human-readable or JSON output.
This is free and open source software.
Key Features
- Interactive terminal user interface with month, week, day and agenda views.
- Command-line interface suitable for scripting and automation.
- Manages events, to-dos, journal entries and multiple calendars.
- Stores data locally in an SQLite database.
- Imports and exports iCalendar files with broad RFC 5545 support.
- Synchronises calendars with CalDAV servers.
- Provides per-calendar remote connections and synchronisation status information.
- Handles synchronisation conflicts and Google account reauthentication.
- Supports recurring events, to-dos and journals using RRULE, RDATE and EXDATE.
- Offers local and remote free/busy queries.
- Provides desktop, sound and email alarm notifications.
- Supports multiple colour-coded calendars.
- Offers full-text search across events, to-dos and journals.
- Manages attendees, attachments, comments, contacts, resources and relationships.
- Produces human-readable text or structured JSON output.
- Cross-platform support – runs on Linux, macOS and Windows.
Website: github.com/DouglasdeMoura/chroncal
Support:
Developer: Douglas de Moura
License: MIT License
chroncal is written in Go. Learn Go with our recommended free books and free tutorials.
Related Software
| 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 |
Read our verdict in the software roundup.
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. Discovered a useful open source Linux program that we haven’t covered yet? Let us know by completing this form. |


Please read our Comment Policy before commenting.