Meeting scheduler nono Booked vs OpenSlides

A side-by-side comparison of two self-hosted calendar & contacts options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FeatureMeeting scheduler nono BookedOpenSlides
CategoryCalendar & ContactsCalendar & Contacts
LicenseGPL-3.0MIT
LanguagePHPShell
Setup difficultyMediumMedium
Min. RAM256 MB512 MB
Deploymentbare-metal, dockerdocker
GitHub stars★ 779★ 629
First released20112026
ReplacesSkedda, Acuity Scheduling

Why pick each one

Choose Meeting scheduler nono Booked if…

  • Released under the GPL-3.0 license
  • First-class Docker support for quick deployment
  • Written in PHP
  • Tiny footprint — runs in 256 MB RAM
Meeting scheduler nono Booked details

Choose OpenSlides if…

  • Released under the MIT license
  • First-class Docker support for quick deployment
  • Written in Shell
  • Lightweight — runs in 512 MB RAM
OpenSlides details

Frequently asked questions

Is Meeting scheduler nono Booked or OpenSlides better?

Neither is universally better. Meeting scheduler nono Booked has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.

Are Meeting scheduler nono Booked and OpenSlides free and open-source?

Yes. Meeting scheduler nono Booked is licensed under GPL-3.0 and OpenSlides under MIT. Both can be self-hosted at no software cost.

Can I run Meeting scheduler nono Booked and OpenSlides with Docker?

Meeting scheduler nono Booked: yes. OpenSlides: yes.

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