Calendly vs Cal.diy
Calendly is a paid scheduling service with a free plan [S1]. Cal.diy is "the open source community edition of Cal.com", released under the MIT license [S3][S4]. Its README says: "It is strictly recommended for personal, non-production use." [S3] We checked every figure on this page against the vendors' own pages on 16 Oct 2026. Prices on this page are list prices as of that date.
Calendly vs Cal.diy at a glance
| Calendly | Cal.diy (Cal.com community edition) | |
|---|---|---|
| License | Not documented on the pages we read | "MIT License", SPDX MIT [S4] |
| Intended use | Not documented on the pages we read | "strictly recommended for personal, non-production use" [S3] |
| Free option | Free plan: one event type, one calendar connection [S1] | Code under MIT [S4] |
| Paid plans | Standard US$10 per seat a month, Teams US$16 per seat a month [S1] | Not documented on the pages we read |
| GitHub stars | Not applicable in our reading | 49,779 on 8 Nov 2026 [S2] |
| Last code push | Not applicable in our reading | 4 Nov 2026 [S2] |
What is Cal.diy?
The README says: "Cal.diy is the open source community edition of Cal.com" [S3]. The GitHub repo calcom/cal.com now redirects to calcom/cal.diy [S2]. Its LICENSE file begins "MIT License Copyright (c) 2020-present Cal.com, Inc." [S4] The repo had 49,779 stars on 8 Nov 2026, and the last push was on 4 Nov 2026 [S2]. It is not archived [S2].
Non-production warning: the README says "It is strictly recommended for personal, non-production use." [S3] It adds: "For any commercial and enterprise-ready scheduling infrastructure, use Cal.com, not Cal.diy" [S3]. Plan Cal.diy for personal or test use only.
Cal.com vs Calendly pricing
Calendly's Free plan includes one event type and one calendar connection [S1]. Standard costs US$10 per seat a month [S1]. Teams costs US$16 per seat a month [S1].
Cal.diy's code is free to use under the MIT license [S4]. In our reading, it costs you the server it runs on. Hosted Cal.com pricing is not documented on the pages we read.
Calendly is the better fit when
- You need scheduling for production or business use. Cal.diy's README recommends it only for "personal, non-production use" [S3].
- One event type and one calendar connection on a free plan are enough [S1].
Cal.diy is the better fit when
- You want a personal or test scheduling setup with its code under the MIT license [S3][S4].
- You want to read and change the code yourself [S4].
Other Calendly alternatives
Forkshelf lists 45 tools with open-source alternatives. See the Calendly alternatives page for the open-source options we list for Calendly.
FAQ
Is Cal.com free?
The open-source community edition, Cal.diy, is MIT-licensed [S4]. Its README says it is "strictly recommended for personal, non-production use" [S3]. Hosted Cal.com pricing is not documented on the pages we read.
Is Calendly free?
Calendly has a Free plan with one event type and one calendar connection [S1].
Is Calendly or Cal.com better?
For production scheduling, Cal.diy's own README points to Cal.com and away from Cal.diy [S3]. In our reading, compare Calendly with hosted Cal.com on the vendors' pages for that case.
What happened to the calcom/cal.com repo?
It redirects to calcom/cal.diy on GitHub [S2].