Best free add-to-calendar tool
AddCal is the best free add-to-calendar tool in October 2026 (Free plan 12.1/14). AddCal has a free plan with unlimited calendar adds and scores 84/100 overall. Runner-up: CalendarLink (Free plan 11.5/14).
Prices last verified . Checked weekly.
How we pick: Has a $0 plan. Ranked by our Free plan score (what you can do at $0). Tools level on this measure are shown as joint picks. Same data and rubric as every other page; see the methodology.
| # | Tool | Score | Free plan | Paid from | Small | Growing | High volume | Prices checked |
|---|---|---|---|---|---|---|---|---|
| 1 | AddCal | 84 | Yes | $15/mo | Free | $15 | $25 | |
| 2 | CalendarLink | 59 | Yes · trial | $23/mo | $23 | $23 | $47 | |
| 3 | CalGet | 47 | Yes | $21/mo | $21 | $21 | no fit | |
| 4 | AddEvent | 59 | Yes · trial 7d | $36/mo | $36 | $129 | no fit | |
| 5 | SpreadEvent | 31 | Yes · trial 14d | $33/mo | $33 | $33 | no fit |
Costs are the cheapest plan billed monthly (or the yearly price ÷ 12 when no monthly price is published) that covers each usage scenario. "No fit" means no published plan covers it. Order: score, then name. Affiliate status is not an input.
Free code options
If you can edit your site, these cost nothing. Add to Calendar Button runs JavaScript, so it only works on websites; email clients don't run scripts. Plain Google/Outlook links and .ics files (hand-built, or generated on your server with calendar-link) also work in emails.
- Add to Calendar Button: A JavaScript web component that renders an add-to-calendar button for Google, Apple, Microsoft 365, Outlook.com, Teams, Yahoo and a generated .ics file. Free to self-host; RSVP, hosted .ics files and an API are part of the separate paid Add to Calendar PRO service.
- calendar-link (npm): A small MIT-licensed JavaScript/TypeScript library that builds add-to-calendar URLs for Google, Outlook.com, Office 365, Microsoft Teams, Yahoo and AOL, plus an .ics file as a data URL. It suits developers who want links without any hosted service; there is no UI, RSVP or analytics.
- Hand-rolled links and .ics files: Building Google Calendar, Outlook.com, Office 365 and Yahoo "add event" URLs by hand and offering a downloadable .ics (RFC 5545) file for Apple Calendar, Outlook desktop and other clients. No cost or account, but no updates after adding, no RSVP and no analytics unless you build them.
Questions
What is the best free add-to-calendar tool?
AddCal is the best free add-to-calendar tool in October 2026 (Free plan 12.1/14). AddCal has a free plan with unlimited calendar adds and scores 84/100 overall. Runner-up: CalendarLink (Free plan 11.5/14).
How do we pick?
Has a $0 plan. Ranked by our Free plan score (what you can do at $0). Tools level on this measure are shown as joint picks. Same data and rubric as every other page.