Tools On TheSpielplatz

Creates from a mnemonic (BIP39) printable sheet for backup card, cover sheet, zpub and addresses

A diy paper frame generate and print layout.

A free and open source collection of tools from my daily work life, that I improved by coding them myself.

This is a live Linux system that loads completely into RAM, enabling the removal of the USB drive. This approach guarantees that no data, intentionally or accidentally, is saved.

This tool lets you drag and drop an .ics calendar file to instantly view the event details like title, time, location, and description. With one click, you can add the event to your Google Calendar using a pre-filled link — no login or installation required.

This tool creates paint by number pixel drawing which can be printed and used to occupy children 😉.

Enhancement of a phase control board by integrating it with an ESP32 microcontroller, enabling control through a web interface.

Upload an image, add date, location, and description, then download a polaroid-style photo.

Generate SEPA-compatible banking QR codes instantly by entering recipient, IBAN, BIC, and amount details. Easily scannable with most European banking apps for fast and error-free payments.

Use an LNBits account to easily make a donation barometer.

This tool validates a Austrian social security numbers to ensure accuracy and compliance with local regulations.

Design 2D pixel images visually and send them directly to WLED. A lightweight studio for pixel art, live previews and device control.