Free tools
Free calendar tools
Handy utilities for anyone who works with calendars. No signup, no tracking of your data — everything runs right in your browser.
"Add to Calendar" link generator
Turn any event into share-ready links for Google Calendar, Outlook and Microsoft 365, plus a universal .ics file for Apple Calendar.
Open the toolAdd one calendar to another
Pick where a calendar lives and where you want to see it — get the exact steps to connect Google, Outlook and Apple iCloud calendars, and what the limits are.
Open the toolOutlook calendar visibility wizard
Make your Outlook calendar public, private, free/busy-only or shared: pick your Outlook version and goal, get the exact clicks — plus what each permission level really shows.
Open the toolFree/busy link builder
Share your availability without exposing event details: build a Google Calendar free/busy link and embed code, with publishing steps for Outlook and Apple.
Open the toolICS file viewer & validator
Open any .ics file right in your browser: inspect events, recurrence rules and metadata, and catch format problems before they break an import.
Open the toolRRULE generator
Build iCalendar recurrence rules visually, preview the upcoming occurrences and copy a spec-correct RRULE string for any calendar app or API.
Open the tool