Repositories list

• ical4j

  Public
  A Java library for parsing and building iCalendar data models

  javalibraryicalendar+ 1

  javalibraryicalendarscheduling

  Java

  •

  BSD 3-Clause "New" or "Revised" License

  •214214 forks•830830 stars•155155 issues•77 pull requests•Updated Apr 12, 2026Apr 12, 2026

• ical4j-template

  Public
  Applying the iCalendar and vCard models to common domains

  icalendarvcard

  icalendarvcard

  Java

  •

  BSD 3-Clause "New" or "Revised" License

  •00 forks•11 star•1010 issues•11 pull request•Updated Mar 25, 2026Mar 25, 2026

• tzurl

  Public
  This project implements conversion of IANA tzdata into iCalendar VTIMEZONE objects

  generatoricalendartimezone

  generatoricalendartimezone

  C

  •

  GNU General Public License v2.0

  •77 forks•1717 stars•88 issues•00 pull requests•Updated Mar 6, 2026Mar 6, 2026

• ical4j-connector

  Public
  Connectivity with persistent store implementations

  javalibraryicalendar+ 2

  javalibraryicalendarcaldav-clientvcarddav

  Java

  •

  Other

  •1717 forks•1111 stars•1212 issues•00 pull requests•Updated Feb 27, 2026Feb 27, 2026

• ical4j-zoneinfo-outlook

  Public
  MS Outlook-compatible Timezone Definitions

  javalibraryoutlook+ 3

  javalibraryoutlooktimezonesical4jical4j-zoneinfo-outlook

  Java

  •

  Other

  •22 forks•44 stars•44 issues•00 pull requests•Updated Jan 26, 2026Jan 26, 2026

• ical4j-extensions

  Public
  Extending the standards with additional model constructs

  javalibraryicalendar+ 6

  javalibraryicalendarcaldavmicrosoft-outlookical4japple-calendarlotus-notesgroupwise

  Java

  •

  Other

  •22 forks•22 stars•33 issues•00 pull requests•Updated Dec 29, 2025Dec 29, 2025

• ical4j-command

  Public
  Command framework for common operations

  Java

  •

  BSD 3-Clause "New" or "Revised" License

  •00 forks•00 stars•00 issues•00 pull requests•Updated Dec 29, 2025Dec 29, 2025

• ical4j-serializer

  Public
  Marshalling iCalendar and vCard to XML and JSON formats

  jsonicalendarxml+ 3

  jsonicalendarxmlschema-orgical4jjscalendar

  Java

  •

  BSD 3-Clause "New" or "Revised" License

  •22 forks•33 stars•55 issues•00 pull requests•Updated Dec 29, 2025Dec 29, 2025

• ical4j-vcard

  Public
  Support for the vCard specification

  javalibraryvcard-specification+ 1

  javalibraryvcard-specificationical4j-vcard

  Java

  •

  Other

  •44 forks•1010 stars•22 issues•00 pull requests•Updated Dec 21, 2025Dec 21, 2025

• ical4j-user-guide

  Public
  iCal4j user documentation

  documentation

  documentation

  Makefile

  •55 forks•22 stars•00 issues•11 pull request•Updated Dec 18, 2025Dec 18, 2025

• ical4j-integration

  Public
  iCalendar support for Enterprise Integration Patterns (EIP)

  javaemailmessaging+ 3

  javaemailmessagingreactive-streamsical4jicalendar-support

  Java

  •00 forks•22 stars•44 issues•00 pull requests•Updated Dec 18, 2024Dec 18, 2024

• ical4j-streams

  Public
  Workflow automation for iCalendar

  workflow-automationical4jschedule-management

  workflow-automationical4jschedule-management

  Java

  •00 forks•00 stars•66 issues•00 pull requests•Updated Sep 19, 2024Sep 19, 2024

• ical4j-graph

  Public
  Support graph traversal of linked iCalendar and vCard objects

  librarygraphicalendar+ 1

  librarygraphicalendarvcard

  BSD 3-Clause "New" or "Revised" License

  •00 forks•00 stars•00 issues•00 pull requests•Updated Aug 19, 2024Aug 19, 2024

• ical4j.github.io

  Public
  ical4j pages

  website

  website

  SCSS

  •00 forks•00 stars•22 issues•00 pull requests•Updated Aug 17, 2024Aug 17, 2024

• ical4j-validator

  Public
  A simple validation service for iCalendar

  icalendarservlet

  icalendarservlet

  Java

  •

  BSD 3-Clause "New" or "Revised" License

  •00 forks•00 stars•00 issues•00 pull requests•Updated Aug 3, 2023Aug 3, 2023

• ical4j-query

  Public
  A service for filtering iCalendar collections using iCal4j filter expressions

  Java

  •

  BSD 3-Clause "New" or "Revised" License

  •00 forks•00 stars•00 issues•00 pull requests•Updated Aug 3, 2023Aug 3, 2023

• .github

  Public
  iCal4j readme repository

  BSD 3-Clause "New" or "Revised" License

  •00 forks•00 stars•00 issues•00 pull requests•Updated Feb 8, 2023Feb 8, 2023

• ical4j-karaf-features

  Public
  Apache Karaf feature definitions for simple deployment of iCal4j libraries

  BSD 3-Clause "New" or "Revised" License

  •00 forks•00 stars•00 issues•00 pull requests•Updated May 26, 2022May 26, 2022

• ical4j-zoneinfo-ipfs

  Public
  Support for timezone definition updates over IPFS

  icalendaripfstimezones

  icalendaripfstimezones

  Java

  •

  BSD 3-Clause "New" or "Revised" License

  •00 forks•00 stars•00 issues•00 pull requests•Updated Apr 5, 2022Apr 5, 2022