Icalendar GitHub Repositories (2026) · Open Source Tools

Terminal-first calendar, todo, and journal manager with iCalendar (RFC 5545) support and CalDAV sync — CLI + TUI, local SQLite storage

Javascript parser for ics (rfc5545) and vcard (rfc6350) data

jtx Board allows you to manage your Journals (like meeting minutes), Notes and Tasks in one Android app. The app is compatible with the iCal standard (RFC5545) and is integrated with DAVx5 to allow the synchronisation of entries through CalDAV.

a calendar server aiming to be simple, fast and passwordless

icalendar parser library for Python

Simple iCal parser for PHP for parsing format into array

Tatuin (Task Aggregator TUI for N providers)

WebCalendar is a PHP application used to maintain a calendar for a single user or an intranet group of users. It can also be configured as an event calendar.

📆 icalendar library, in Rust of course - for fun

Parser for iCalendar Events • PHP 8+, 7 (≥ 7.4), 5 (≥ 5.6)

A Java library for parsing and building iCalendar data models