Important: Brevity disclaimer.


Zadolbator is simple reminder component for Jabber server. Its main purpose is to remind you about events such as birthdays or holidays - though, you can use it also for keeping your everyday reminders about meetings, things to do, etc.

Zadolbator uses iCalendar format to store events: thus, you will need some basic understanding of iCalendar format to use it.

Implementation language is Ruby, license is GPL.

As it is written mainly for personal use - do not expect robustness, high quality or user-friendly interface - there’s nothing more than “it works for me”.

I do not actively develop Zadolbator now, but I might consider improving things there if there are requests for that, plus I’m still going to add several small features there which I need for my own personal use.


  • Allows to add / modify / remove events in iCalendar format and manage subscriptions to these events.
  • Sends notifications according to ALARM section of event.
  • Supports multiple users.
  • Allows custom ruby script to be executed when notification is sent.
  • Two interfaces are provided: ad-hoc commands and message-based.
  • Standards-compliant (hopefully): should work with every Jabber server that supports components and every Jabber client (using ad-hoc commands requires support from Jabber client of XEP-0004 and XEP-0050).


Psi client using AdHoc commands interface of Zadolbator

AdHoc interface preview image

Psi client using message-based interface of Zadolbator

Message-based interface preview image


The latest version is 0.1_alpha, here are the sources.