emersion/go-webdav

A Go library for WebDAV, CalDAV and CardDAV

emersion/go-vcard

A Go library to parse and format vCard

emersion/go-imap

📥 An IMAP library for Go clients and servers

emersion/go-milter

Go library to write mail filters

arran4/golang-ical

A ICS / ICal parser and serialiser for Golang.

collective/icalendar

icalendar parser library for Python

teambition/rrule-go

Go library for working with recurrence rules for calendar dates.

niccokunzmann/open-web-calendar

Embed a highly customizable web calendar into your website using ICal source links