Self-Hosted Calendly Alternatives (Open Source)

These self-hosted Calendly alternatives let people book time with you through pages you host, so your calendar data stays on your server. Licenses, stars and last-commit dates below were checked on Oct 27, 2026.

Compare the top picks

Compare booking pages (Cal.diy, Easy!Appointments, LibreBooking) and group availability polls (Rallly, Timeful) on license, stack and deploy path.

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Quick comparison

Name	License	Language	Docker?	Last commit
Cal.diy (Cal.com community edition)	MIT	TypeScript	Yes	2026-10-27
Easy!Appointments	GPL-3.0	PHP	Yes	2026-10-19
Rallly	AGPL-3.0	TypeScript	Yes	2026-10-26
LibreBooking	GPL-3.0	PHP	Yes	2026-10-25
Timeful (formerly Schej)	AGPL-3.0	See repo	Yes	2026-10-07

License, stars and last commit checked against the GitHub API and repo files on 2026-10-27.

Listings

Cal.diy (Cal.com community edition)

Open-source scheduling and booking pages

MIT · OSITypeScriptDocker★ 49,414 as of 2026-10-27

MIT per GitHub license metadata and README. The old calcom/cal.com GitHub URL now redirects here. README: Cal.diy is the community edition of Cal.com with enterprise features removed (Teams, Organizations, Insights, Workflows, SSO/SAML) and is "strictly recommended for personal, non-production use".

Pros

100% MIT, no license key needed (per README)
Booking pages with calendar and video integrations

Cons

README recommends personal, non-production use
Team and enterprise features removed vs Cal.com

Website Source Deploy on RepoCloud

Last commit (default branch): 2026-10-27 · Last verified: 2026-10-27

Easy!Appointments

Self-hosted appointment scheduling for providers and customers

GPL-3.0 · OSIPHPDocker★ 4,461 as of 2026-10-27

GPL-3.0 per GitHub license metadata.

Pros

Provider working plans and Google Calendar sync
Lightweight PHP/MySQL app

Cons

Aimed at service bookings more than personal meeting links
Fewer integrations than Cal.diy

Website Source Deploy on RepoCloud

Last commit (default branch): 2026-10-19 · Last verified: 2026-10-27

Rallly

Group scheduling polls to find a meeting time

AGPL-3.0 · OSITypeScriptDocker★ 5,325 as of 2026-10-27

AGPL-3.0 per GitHub license metadata.

Pros

Ships as a Docker image (per README)
Simple polls for finding a time with a group

Cons

Polls, not one-to-one booking pages
Smaller feature set than a full booking tool

Website Source Deploy on RepoCloud

Last commit (default branch): 2026-10-26 · Last verified: 2026-10-27

LibreBooking

Resource and appointment booking system

GPL-3.0 · OSIPHPDocker★ 838 as of 2026-10-27

GPL-3.0 per GitHub license metadata. Repo moved from LibreBooking/app to LibreBooking/librebooking. README carries security warnings: upgrade to 7.1.0 or later.

Pros

Books rooms, equipment and staff time
Docker images available (per README)

Cons

README warns older versions have critical vulnerabilities; run 7.1.0 or later
Built for resource booking more than personal meeting links

Website Source Deploy on RepoCloud

Last commit (default branch): 2026-10-25 · Last verified: 2026-10-27

Timeful (formerly Schej)

Availability polls for finding a time for a group

AGPL-3.0 · OSISee repoDocker★ 1,795 as of 2026-10-27

AGPL-3.0 per GitHub license metadata.

Pros

Calendar-aware group availability
Docker Compose deployment guide (per README)

Cons

Group polls, not one-to-one booking pages
Smaller project

Website Source

Last commit (default branch): 2026-10-07 · Last verified: 2026-10-27

How to choose

Want Calendly-style booking links? Cal.diy, the MIT community edition of Cal.com. Its README recommends it for personal, non-production use.
Booking services, rooms or staff? Easy!Appointments or LibreBooking (both GPL-3.0). Run LibreBooking 7.1.0 or later, per its README security notice.
Finding a time for a group? Rallly or Timeful (both AGPL-3.0) run availability polls.

FAQ

Is Cal.com still open source?

The open-source code now lives in Cal.diy (github.com/calcom/cal.diy; the old calcom/cal.com URL redirects there). Per its README it is 100% MIT with enterprise features such as Teams, Organizations and SSO removed.

Which option is closest to Calendly?

Cal.diy, because it offers personal booking pages with calendar integrations. Easy!Appointments and LibreBooking are built more for service and resource booking.

Do I need my own email server?

Booking tools send confirmations by email, so plan on an SMTP provider. Check each project's docs for its exact requirements.

“Deploy on RepoCloud” buttons appear only where RepoCloud has a page for that app (4 of 5 listings here). “Website” and “Source” links are not affiliate links.