The short answer: Cal.com if you want free, open-source, and self-hostable. Google appointment scheduling or Microsoft Bookings if you already pay for Workspace or 365. Acuity for service businesses taking real bookings. SavvyCal for a nicer experience, TidyCal for a cheap one.
| Tool | Best for | Price from |
|---|
| Cal.com | Open-source and self-hosting | Free; Teams about $15/seat/mo |
| Google appointment scheduling | Workspace users | Included with Workspace |
| Microsoft Bookings | Microsoft 365 users | Included with most 365 plans |
| Acuity Scheduling | Service businesses | From about $20/mo |
| SavvyCal | A better booking experience | From about $12/mo |
| TidyCal | Cheap, near-lifetime pricing | About $29 one-time |
What pushes people off Calendly
Usually it comes down to three things. The free plan puts Calendly's branding on your booking page and limits you to a single event type. Beyond that, the features most people actually want sit behind per-seat pricing that adds up fast across a team. And once you are already paying monthly for something, comparing it against a cheaper or more flexible tool becomes hard to avoid.
None of this means Calendly is a bad product. It is polished, and it works. It just means the same job often costs less elsewhere, or is already sitting inside software you have paid for.
Cal.com
Cal.com is the open-source answer to Calendly, and it is the pick if you care about control or cost. The hosted free plan covers individuals, paid team plans add routing and round-robin, and you can self-host the whole thing if you have the appetite. Feature for feature it matches Calendly closely.
The trade-off is that self-hosting is real work. If you just want a free booking link, use the hosted version and skip the server.
Google Calendar appointment scheduling
If your organization runs on Google Workspace, you may already have this and not know it. Appointment scheduling pages are built into Google Calendar, sync natively, and cost nothing extra. For straightforward one-on-one bookings it removes the need for a separate tool entirely.
Microsoft Bookings
Bookings ships with most Microsoft 365 business plans and is the obvious choice for a Microsoft shop. It handles staff scheduling, multiple services, and customer-facing pages, and it ties into Outlook and Teams. If you pay for 365, you are likely paying for this already.
Acuity Scheduling
Acuity, owned by Squarespace, is built for businesses that take bookings as a core activity: clinics, salons, consultants, classes. It handles intake forms, packages, and payments better than Calendly does. It costs more, but for a real booking business that is the point.
SavvyCal and TidyCal
SavvyCal focuses on the experience for the person booking you, letting them overlay their calendar on yours to find a time fast. It is a small touch that meaningfully cuts back-and-forth.
TidyCal is the budget play, an AppSumo product often sold for a low one-time fee instead of a subscription. It covers the basics well. If you book a few meetings a week and resent paying monthly for it, TidyCal is the answer.
Things to know before you switch
Moving off Calendly is not always a clean swap. Existing booking links you have shared in email signatures, on your website, or in a CRM will need to be updated or redirected, and any pages you forget will quietly stop working. If you rely on integrations, like routing forms or CRM syncing, confirm the new tool supports the same connections before you commit, since not every alternative matches Calendly's integration list. And if your team shares availability across a shared calendar, test how the new tool handles calendar sync before rolling it out company-wide: small differences in how busy time gets reflected can cause double-bookings in the first week.
Common questions about switching
What is the best free Calendly alternative?
Cal.com offers a genuinely capable free plan and is open-source. If you use Google Workspace or Microsoft 365, appointment scheduling in Google Calendar and Microsoft Bookings are both free with your existing subscription and need no extra tool.
Is there an open-source Calendly alternative?
Yes. Cal.com is the leading open-source scheduling tool. You can use its hosted free plan or self-host the software for full control over your data. Feature for feature it matches Calendly closely, with the trade-off that self-hosting takes real setup effort.
What do Microsoft 365 users use instead of Calendly?
Microsoft Bookings is included with most Microsoft 365 business plans and integrates with Outlook and Teams. For a Microsoft shop it covers staff scheduling, multiple services, and customer-facing pages without paying for a separate scheduling tool.
Why do people switch from Calendly?
The most common reasons are the free plan's branding and one-event-type limit, per-seat pricing that adds up for teams, and the realization that comparable scheduling is often free with Google Workspace or Microsoft 365, or cheaper through tools like Cal.com and TidyCal.
