Crab Fit vs Framadate

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?
FeatureCrab FitFramadate
Deploy effortUnder-an-hour setupUnder-an-hour setup
CategoryCalendar & ContactsCalendar & Contacts
LicenseMITCECILL-B
LanguageTypeScriptPHP
Setup difficultyEasyEasy
Min. RAM256 MB128 MB
Deploymentdockerbare-metal, docker
GitHub stars★ 531★ 600
First released20202011
ReplacesWhen2meet, DoodleDoodle

What are Crab Fit and Framadate?

Crab Fit

Crab Fit is an open-source scheduling tool that helps groups find a time to meet by overlaying everyone's availability. Participants mark free slots without registering, and a heatmap reveals the best overlap, similar to When2meet.

  • Availability heatmap
  • No registration required
  • Group time-finding

Framadate

Framadate is an online service for planning appointments or making decisions quickly and easily. Developed by Framasoft, it lets groups vote on dates and options without registration.

  • Date and decision polls
  • No account required
  • Part of the Framasoft suite

Crab Fit vs Framadate: key differences

Crab Fit is written in TypeScript, while Framadate is built with PHP. Licensing differs — MIT for Crab Fit versus CECILL-B for Framadate. Framadate is the lighter option, starting around 128 MB of RAM against 256 MB for Crab Fit. Framadate is the more established project (first released 2011), while Crab Fit arrived in 2020.

Why pick each one

Choose Crab Fit if…

  • Released under the MIT license
  • Easy to set up — beginner-friendly
  • First-class Docker support for quick deployment
  • Written in TypeScript
Crab Fit details

Choose Framadate if…

  • Released under the CECILL-B license
  • Easy to set up — beginner-friendly
  • First-class Docker support for quick deployment
  • Written in PHP
Framadate details

Frequently asked questions

Is Crab Fit or Framadate better?

Neither is universally better. Framadate has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.

Are Crab Fit and Framadate free and open-source?

Yes. Crab Fit is licensed under MIT and Framadate under CECILL-B. Both can be self-hosted at no software cost.

Can I run Crab Fit and Framadate with Docker?

Crab Fit: yes. Framadate: yes.

Which is lighter on resources, Crab Fit or Framadate?

Framadate has the smaller minimum footprint at 128 MB of RAM, compared to about 256 MB for Crab Fit. Real-world usage depends on library size, user count, and enabled features.

Related comparisons