Skip to content
Repoly

Open source alternatives to Calendly

We track 6 open-source Calendly alternatives, of which 4 currently score 70 or above on Repoly's GitHub health scale and 3 ship a Docker image. Rallly leads on health at 95/100 with 646 commits in the last 90 days; across all 6 projects you are choosing between AGPL-3.0, GPL-3.0, MIT.

6
Alternatives
61k
Combined stars
1,085
Commits / 90 days
3
With Docker
Licence family Licence

Showing 6 of 6 tools

All 6 Calendly alternatives, ranked by health

  • Top pick · highest health

    Rallly

    95 GOOD

    Create polls to vote on dates and times (alternative to Doodle).

    ★ 5.3k · ⟳ today · v4.15.1 · AGPL-3.0

    DockerNodejs
    Website ↗ Source ↗

  • LibreBooking

    92 GOOD

    Resource scheduling solution offering a flexible, mobile-friendly, and extensible interface for organizations to manage resource reservations.

    ★ 807 · ⟳ yesterday · v5.3.0 · GPL-3.0

    DockerPHP
    Website ↗ Source ↗

Calendly alternatives: common questions

What is the most maintained open source alternative to Calendly?

Rallly scores highest at 95/100, with 646 commits in the last 90 days, 5.3k GitHub stars and its latest release (v4.15.1) published yesterday. It is also the most active by raw commit count.

Which Calendly alternatives use a permissive licence?

1 of 6 are permissively licensed (MIT, Apache, BSD or similar): Cal.diy (MIT). 5 use copyleft licences such as GPL or AGPL, which require you to publish changes if you distribute a modified version.

Which Calendly alternatives run in Docker?

3 of 6 publish a Docker image or Compose file: Rallly, LibreBooking, Seatsurfing. Docker support contributes 10 of the 100 available health points, because it is the clearest signal that self-hosting is a supported path rather than an afterthought.