Personal apps · hobbies
These are my own hobby apps and side hustles — not client work. Small products I design, build, and run myself, for fun (and learning).
When to sow, plant and harvest — for your region
A free sowing and planting calendar for the garden: choose your region, build a plan from 80 plants, then print it with checklists or export it to your phone calendar.
Same leave. Longer breaks.
A free bridge-day planner for Germany: say how many vacation days you have, and it places them next to public holidays and weekends so the time off arrives in long stretches.
Your training plan. Private.
A free gym planner and set log for Germany, Austria and Switzerland — your workouts, records and body metrics stay on your own device.
Be ready before the crisis, not during it.
Crisis preparedness for Germany: 13 sourced emergency scenarios, a crisis plan that never leaves your browser, and the official emergency numbers and hazard maps — free, no account.
Little puzzles — fresh every day.
A hub of 22 daily German puzzle games — the same puzzle for everyone each day, plus a competition mode with a shared leaderboard held on the server.
tiny tools, big grin
18 small developer tools that all compute inside the browser tab — encoders, inspectors, hashes, generators, barcodes. Free, and nothing you paste ever leaves the page.
