Felix Kling

Hi, my name is Felix and I’m a software engineer. When I’m not spending time with my family, I enjoy working on and learning about Internet technologies, programming languages, developer tooling, computer networks & security and electronics.

I occasionally write about these things.

You can find me on

or you can email me (GPG key).


Current and past projects that I created:


JavaScript is the language I’m most familiar with and I enjoy helping people understand its oddities. I would like to build more interactive tools to help with that. To start with, JavaScript “loose” comparison step by step shows which steps of the comparison algorithm are taken for specific values.

Favorite quotes

“I may not have gone where I intended to go, but I think I have ended up where I needed to be.” (Douglas Adams - Hitchhiker’s Guide to the Galaxy)

“Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.” (Antoine de Saint Exupery)

“If you’re not making mistakes, you’re not doing anything.” (John Wooden)