The iCal4j project offers Java-based tools and services supporting interoperability standards such as iCalendar and vCard.

iCal4j is primarily for software developers interested in interoperability of data between software systems. This could be in the form of generating new data (such as publishing events or contact details), or consuming existing data (e.g. tracking responses to invites, etc.).

Additional tools and services are also available to end users to support things like validation of iCalendar data, and integration with persistence solutions.

Open Source software is a collaboration between developers and users, and we don't impose boundaries between them.

Your feedback, testing, fixes and suggestions are what drives the success of iCal4j, as we just don't have the time and resources to focus on everything.

So let us know what you think, where we need to apply our focus, and how we can make this project a greater success.

And if you like what you see, and believe in our goals, feel free to volunteer some code, documentation or other improvements by forking one of our repositories and submitting a pull request.

Thank you for your support!

The iCal4j team.