Henrik Heil

that's me more about me

UX Design & Accessibility

I design and build digital products, from the first sketch to a finished, accessible app.

To the projects

Current projects

Turns phone GPS tracks into a 3D flight over your route, with photos and weather.

  • Android app
  • , Data pipeline
  • , 3D & WebGL

Checks historical novels for words that are too modern for their period.

  • AI-powered

Sell second-hand from a photo: AI writes listings for Kleinanzeigen and Vinted.

  • AI-powered
  • , Chrome extension
  • , Android app

Bargain finder for Kleinanzeigen, eBay, and MyDealz: AI rates and reports finds.

  • AI-powered
  • , Chrome extension
  • , Data pipeline

Chrome extension: summarizes pages, YouTube, and PDFs in the side panel.

  • AI-powered
  • , Chrome extension

Runs local dev servers on a Mac: fixed ports and addresses for you and your agents.

  • macOS app

Experiments

Collects notes, links, and ideas in one stream. Web, Android, macOS, and Chrome.

  • AI-powered
  • , Chrome extension
  • , Android app
  • , macOS app

A connection space for couples with guided exercises in touch, talk, and closeness.

  • Android app

Generate AI textile patterns, validate seamless tiling, and preview directly on garments in 3D.

  • AI-powered
  • , 3D & WebGL

A map of conservation placements and internships worldwide, updated daily.

  • AI-powered
  • , Data pipeline

Daily duel: detect AI forgeries in text and image across three difficulty tiers.

  • AI-powered

Filter CIMDATA courses by start date, build a study plan, and share it by URL.

  • Data pipeline

About me

Portrait of Henrik Heil
Henrik Heil

I live in Frankfurt, Germany, after four years as a digital nomad across Asia, South and Central America, working remotely for my clients. There I saw how differently people use technology. Good products need accessible design from the start, not later as an add-on.

Focus areas

UX & usability
UX designUser researchUsability testingInformation architectureWireframingPrototypingDesign systemsFigma
Accessibility
WCAG 2.2Semantic HTMLARIAKeyboard supportPlain language (Leichte Sprache)Accessible forms
AI & automation
Coding agentsLangfuseLLM integrationAI UX (human-in-the-loop)ElevenLabsGenerative image & video AI
Software development
PHPMySQLTypeScriptReactREST APIsDeploymentSpec-driven development
Media production
Video editingVideo productionFinal Cut ProDaVinci Resolve

Professional background

  • 2026Professional training “AI Process & Media Engineer”, cimdata academy
  • since 2006Self-employed as UX engineer and software developer, from concept to production system
  • 2007–2025Deutsche Bahn AG: exam database for questions and exam workflows, from concept to production
  • 2017–2018Lead developer (freelance) for Rhein-Main.Net GmbH / Mediengruppe Frankfurt
  • 2014–2017Associate Partner Web Development at ZMI-Transfer (TransMIT GmbH), Uni Gießen
  • 2002–2007Dipl.-Ing. (FH) in Media Informatics, Technische Hochschule Mittelhessen

Away from work

  • Filmmaking
  • Travel

Open to new projects

Let's talk.

Whether UX, accessible delivery, or an AI-powered product: a short email is enough.

Send an email