Personal apps · hobbies

Side projects

These are my own hobby apps and side hustles — not client work. Small products I design, build, and run for fun (and learning), each on its own domain.

Trainingszettel

trainingszettel.de

Your training plan. Private.

A free, privacy-first gym training planner and workout logger for the DACH region — your training data never leaves your device.

Next.js
React
TypeScript
IndexedDB
PWA

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4coders

4coders.net

tiny tools, big grin

A fast, offline, keyboard-first developer toolbox — Base64, hashing, JWT, QR codes and more. Everything runs client-side; nothing is ever uploaded.

Next.js
React
TypeScript
Web Crypto
daisyUI

View details Open app