In the current situation we don’t deem ourselves able to create a JSKongress as fun, as welcoming and an amazing experience that we always want to offer to YOU. Therefore we take a break. (If you had a ticket for the 2020 edition, you have received a refund note — please get in touch if you didn’t.)

First of all we want to THANK YOU: A lot of thanks for the great time we had together! Thanks to everyone involved, friends, guests, speakers, partners and volunteers. Thank you for joining us, each one of you has contributed to creating a…

We are so cheerful to be able to announce episode #5!

Looking forward to JSKongress meets friends #5 on September 29, 5:30 pm (CEST). Join us when we will be talking about SpiderMonkey, the JavaScript engine in Firefox, with the Mozillians Yulia Startsev and Iain Ireland. Anything you ever wanted to know? Send us your questions to

Code of Conduct
First of all, everyone involved with JS Kongress has to agree to the Code of Conduct. You agree to comply by participating. Quick version: Be nice to each other and smile! For detailed version go to

YOUR guests

“Welcome to our 4th session with the RxJS core team.”

So just to give you a quick introduction, for the ones who are watching this live stream the first time [or reading this blog post tying up with it]. “JSKongress meets friends” is a format that we want to invite people and teams where we think that they can answer some quite interesting stories of some tools, maybe you’re using as well. And also like getting some more insights, which you can’t read on the blog posts. …

Welcome to the 2nd Episode of JSKongress meets Friends! 👬👫👭

[editor’s note: This is the transcript of our live stream. Additional info have been added.]

Live-Chat: Ah, a JS Kongress meetup you can watch in your pyjamas, if you have pyjamas! 🛋️ #StayAtHome 🏠

This time we’re talking about the Chrome DevTools and beyond, where we cover different topics from

  • Architecture & History
  • Workflow & Quality
  • Team & Feedback
  • Design & Accessibility and
  • WebAssembly Debugging

I’m Johannes and your host for this episode. Sending you a warm welcome ❤️ from rainy Munich! ☔

The idea behind #JSKongress meets friends is…

JSKongress meets Paul Lewis, Kim Anh Tran, Mathias Bynens, Peter Müller on Tuesday, 28th April, 5:30 pm (CEST)

Here is the second episode of #jskongress meets friends: We are excited to announce the guests for our next episode.

Join us live on Tuesday, April 28th, starting 5:30 pm (CEST) on our channel

We are so grateful, that these four amazing people from the Chrome DevTools Team will join us:

  • Kim Anh Tran (WebAssembly SWE)
  • Mathias Bynens (Design & Accessibility TL)
  • Paul Lewis (Architecture & Testing TL)
  • Peter Müller (UX lead)

We will discuss Chrome DevTools, especially History and Architecture, Quality & Workflows, Team Organization, Design & Accessibility, WebAssembly Debugging, and further questions that have been proposed by the community.

Send us your questions until Monday, April 27th — comment here or via mail to hello[at]

JSKongress meets Geeky Purple Unicorn and Robin Böhm live on Tuesday, April 14th, 5:30 pm

All our lives are affected by #covid19 as #JSKongress is as well. We are separated physically by #StayAtHome 🏠, but socially we are united. 👬👫👭

JSKongress meets friends is a new online format with friends of JS Kongress! Everyone is welcome to join us, exchange thoughts, motivation, experiences and knowledge.
Let’s share thoughts and approaches to create a positive vibe for the future out of the crisis. If you have someone in mind you want to see in this format, let us know, ping us with your suggestion :-)

In the first episode we are joined by Geeky Purple Unicorn

Want to attend JS Kongress 2020, but not sure how to bring it up with your boss? We’ve created this email to help you explain why it’s important to attend.

Dear [Name of your Manager],

I’d like to attend JS Kongress 2020 taking place on April 15–16 in Munich, Germany. I’ve researched many conferences, and this is THE conference for gathering developers to share learnings, highlight innovation and discuss the future of JavaScript, including scaling, massive platforms, data-driven architectures, and modern APIs.

With growth, the pain of scaling is added for every company and project. And scaling problems are hard problems. Scaling affects everyone: frontend, backend, architects and teams. JS Kongress 2020 is on the various areas of scaling: questions and optimization approaches will be discussed on and off stage…

… taking place in April 2020 in Munich, Germany 📅

We and our events stand for Diversity — not just in Tech, A balance between professional work, fun, and community, Bias for Action, Thinking one step ahead, A connection to open source and community-driven projects, Party hard with the community

We have been very inspired by the community effort to bring even more JS into the week of JS Kongress. We thought about it for a long time to bring together not only 2 days, not 3, not 4 but a whole week of #JSCommunity in Munich.

So we thought about, what we can do to support the community and these are the very first results:

1. we offer a shared coordination sheet, where you can put your proposals and ideas into

2. we will include the Meetups and community-driven…

JS Kongress Munich

…is the conference about JavaScript. Handcrafted with 💙 for the JS community — from the JS community! postponed, see you 2021 in Munich, Germany

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