Find iCalendar resources, tools, and specifications to help you validate, create, and understand calendar files and scheduling standards.
Validate and explore iCalendar files easily
iCalendar.org is your go-to resource for everything related to the iCalendar standard. Whether you're new to digital calendars or a developer working with scheduling data, you can access clear specifications, helpful resources, and practical tools all in one place.
On the site, you'll find an iCalendar validator to check your files for accuracy, a PHP library for building calendar applications, and up-to-date documentation on iCalendar and related protocols. The layout is straightforward, making it easy to browse standards, guides, and utilities.
If you're working on calendar syncing, event scheduling, or just want to learn more about how digital calendars work, iCalendar.org is designed to help you understand and use the iCalendar format with confidence.
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