The 2023 Roundup of Advent Calendars for Designers and Developers | Front End Nexus

The 2023 Roundup of Advent Calendars for Designers and Developers

Another year, another round of advent calendars is upon us. Welcome everyone to the Fourth roundup of advent calendars for designers and developers. We're mostly dealing with the same list as in the previous years. Most calendars are well established already and make a point of honor in continuing the tradition. There are a handful of new entries and we'll see next year if we're dealing with one-time events or new advent series.

Once more I am presenting the list in alphabetic order, to make it easier to find your desired content. When/if I run into new entries over the next week, I'm going to update the lineup, so be sure to come again later.

12 Days of Web banner

Stephanie Eckles (@5t3ph) prepared another set of twelve articles in celebration of fundamental web technologies: HTML, CSS, and JavaScript. They will be released starting December 13th, so be sure to mark that day in your calendar.

24 Days in Umbraco

24 Days in Umbraco banner

The Umbraco community is celebrating December with the 12th edition of their beloved CMS advent calendar.

24 days of #JavaScriptmas

24 days of JavaScriptmas banner

Scrimba is running a special edition of the JavaScriptmas series of code challenges. There are plenty of prizes to be won: daily Scrimba Pro subscriptions, and a new shiny 13'' Apple MacBook Air M2.

24 jours de web [French]

24 jours de web banner

24 jours de web is an advent calendar for "people who build the web of the future." And speak French. Or use Google Translate to translate the entire page in a language they understand.

24 Pull Requests

24 Pull Requests banner

This is less of an advent calendar and more of an initiative to motivate people to contribue to open source projects. They are encouraged to make at least one pull request every day in December as a way to give back to those projects they are using in their daily coding activities.


AdventJS banner

AdventJS brings you a new JavaScript challenge in every day before Christmas. On top of that, you get points for your solution, and you get to compare your score with all the other participants. Did I mention it is available in three different languages: English, Spanish and Portuguese?

Advent of Code

Advent of Code banner

Advent of Code is probably the best known of all advent challenges. The puzzles here have been used before as interview tests and you can use any programming language you like to get the results.

Advent of CSS

Advent of CSS banner

Advent of CSS is a set of 24 challenges that are emailed to you every day. Each time you get all the files you need to complete the challenge. These challenges are perfect for beginner to intermediate developers who want to become more comfortable with their CSS styling skills.

Advent of Cyber

Advent of Cyber banner

Advent of Cyber is a festive approach to cyber security. Every day you will tackle a new fun challenge where you learn how to protect the North Pole IT infrastructure and foil the dastardly plans of McGreedy. There are also lots of prizes for the best performers, worth over $50000.

Advent of JavaScript

Advent of JavaScript banner

Advent of JavaScript is the sister event to Advent of CSS. Only with JavaScript as the main ingredient.

Bekk Christmas

Bekk Christmas banner

Bekk Christmas is actually a collection of advent calendars focused on over 40 topics. Not all topics will be covered every day, but you'll definitely get at least a handful each time. Let's not forget that some articles are in Norwegian. Enjoy!

C# Advent Calendar

C Sharp Advent banner

Starting on December 1st, the C# Advent will reveal TWO new C# articles every day up to and including December 25th.

F# Advent Calendar in English

F Sharp Advent Calendar in English banner

The F# community take things a step forward. They pledge to publish at least 32 articles (the entire month of December and the first of January).

Festive Tech Calendar

Festive Tech Calendar banner

The Festive Tech Calendar community doesn't publish articles, but videos. And they're raising funds for charity as well. This year they hope to raise at least £5000 for the Raspberry Pi Foundation.

HTMHell Advent Calendar

HTMHell Advent Calendar banner

HTMLHell is relatively new to this sort of events. This year is only the second one featuring content created especially for this occasion. Judging by the great quality of last year's entries, we're up for a treat in 2023 as well.

IndieWeb Gift Calendar

IndieWeb Gift Calendar banner

The IndieWeb Gift Calendar has reached its 7th iteration. Here you will find one or more IndieWeb-related thing(s) each day of December that you can use to improve your IndieWeb experience. Did I tell you it has its own webring too?

Java Advent

JVM Advent banner

The JVM advent plans to make the festive season even sweeter for all Java enthusiasts. Each day you will be able to access one new article on various JVM-related topics.

Knowit Kodekalender [Norwegian]

Knowit Kodekalender banner

Knowit runs yet another edition of their advent calendar, bringing you a new coding challenge each day. Just like with Bekk, you will need to know Norwegian. Unlike Bekk, EVERYTHING is in Norwegian.

Lean UXmas

Lean UXmas banner

Lean UXmas reached its 10th edition - 10 years of gathering some of the greatest articles on Agile and Lean UX.

Perl Advent Calendar

Perl Advent banner

The Perl Advent Calendar is one of the plainest lookin entries in our list. And one of the oldest running - all the way back to 2000. Some of its readers were not even born at that time.

Perl & Raku Weekly Challenge Advent

Perl & Raku Weekly Challenge Advent banner

The Weekly Challenge started as a way to help Perl and Raku developers hone their skills. Their Advent Calendar picks 24 of these challenges and highlights them during the month of December.

Qiita Advent Calendars [Japanese]

Qiita Advent Calendars banner

We've seen that English is not the only language for running a Dev Advent Calendar. Qiita hosts a collection of such calendars, but in Japanese! And they've been doing it since 2011. Arigatou Qiita!

Raku Advent Calendar

Raku Advent Calendar banner

We reach the other end of the spectrum for the Perl ecosystem with one advent calendar dedicated only to Raku (Perl 6).

SELFHTML Advent Calendar

SELFHTML Advent Calendar banner

SELFHTML is one of the oldest German web communities, with the mission to provide German-translated documentation on HTML and other web technologies. Their 2023 advent calendar is focused on strange and unusual punctuation you can encounter while coding for web.

SVG Tutorial

SVG Tutorial banner

SVG Tutorial is the project of Hunor Borbély (@HunorBorbely). It's actually a course on the intricacies of SVG in advent calendar format.

Web Performance Calendar

Web Performance Calendar banner

The Web Performance Calendar is another classic of the dev advent calendar roundups (first edition rolled out in 2009). The 2023 edition brings even more quality content on how to make your websites faster than Santa's sleigh.


I got inspired to make my own advent calendar listing by the Smashing Magazine Advent Calendar Roundups. I also want to give a big shoutout to Adrian Roselli who's been tracking advent calendars since 2010.

If you enjoyed this content, I invite you to check the roundups I did in previous years - some calendars are not running anymore, but their content is still top quality even today.

Wrapping things up

Ukraine is still suffering from the Russian invasion - if you are looking for ways to help, please check Smashing Magazine's article We All Are Ukraine 🇺🇦 or get in touch with your trusted charity.

If you enjoyed this roundup, there are a couple of ways to support it:

Each one of these helps me out, and I would appreciate your consideration.

That's all there is for this year. Have a great and productive winter holiday season, keep yourselves safe, and I will see you around!

Happy Coding Advent!


Main banner Image by congerdesign from Pixabay.

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