Open-Source Alternatives to Calendly
Based on our dataset, the self-hostable open-source alternatives to Calendly are Cal.com. The Calendly plan we benchmark is Teams ($16/seat/mo).
Data last updated . How we check.
Quick comparison
| Alternative | License | RAM in starter config | Needs Postgres / Redis | Migration |
|---|---|---|---|---|
| Cal.com | AGPL-3.0 | 1024 MB | Yes / No | Easy |
Cal.com
Open-source scheduling infrastructure for everyone: round-robin, workflows, Stripe payments & routing forms
- Full white-label on your own domain
- Google, Outlook, Apple Calendar + Zoom/Meet sync
- Automated SMS/Email reminders & routing forms
Docker image calcom/cal.com:latest. GitHub: calcom/cal.com (34.7k stars when our data was last updated). Website: https://cal.com
Switching from Calendly
- Pick an alternative above and open its comparison page for the cost breakdown.
- Generate a free starter
docker-compose.ymlin the stack builder. - Test it on a small server with a copy of your data before moving the team over.
- Check the migration notes in the table, and the official docs of the tool you pick.
More detail: Replace Calendly guide.
FAQ
What are the open-source alternatives to Calendly?
In the StackSwitcher dataset, the self-hostable open-source alternatives to Calendly are Cal.com.
Which Calendly plan does StackSwitcher compare against?
We benchmark Calendly Teams ($16/seat/mo). The main pain point we note: $16/seat/mo for basic round-robin routing, team booking pages, and removing Calendly branding.
How much RAM does Cal.com need when self-hosted?
Our starter Docker config budgets 1024 MB of RAM for Cal.com plus Postgres. Real needs depend on your usage.
Config templates are MIT licensed and provided "AS IS", with no warranty of any kind and no liability. Prices and specs are informational estimates from our dataset, so check the vendor and project sites before you decide. See the Terms & No Warranty disclaimer.