Felix Leupold

FrontEnd Developer & Consultant

I'm a freelance front-end developer from Berlin who creates digital experiences that everyone likes to use.

I passionately combine good design, technology, and innovation in all my projects, which I like to accompany from the first idea to release. Currently, I'm focused on the development of responsive user interfaces with React and I'm interested in JavaScript, Web Technologies, User Experience, Accessibility, Clean Code, and the Universe. And everything in between.


Using a combination of cutting-edge technologies and reliable open-source software I build user-focused, performant apps and websites for smartphones, tablets, and desktops.

  • TypeScript / ES6
  • React (Native)
  • HTML5
  • CSS3 + SASS
  • NodeJS
  • GraphQL

Open Source

I am passionate about open source software and like to give back to others.

  • useLocationState / useQueryState

    store and retrieve state in react from the browsers history using modern hooks

  • Wheel Gestures

    wheel gestures and momentum detection

  • Wheel Gestures for Embla Carousel

    This plugin adds wheel interactions to the amazing Embla Carousel

  • Outer Hooks

    develop javascript modules/libs using hooks - outside of react

  • lionflow

    i18n framework and l10n workflow for react

Clients & Partners

Over the past 10 years, I've worked with great teams for exciting clients to deliver a wide range of projects: from engaging touch interfaces to complex web applications.

Got a project to discuss?

Let's talk