This is just a simple PWA that contains some useful stuff

Maintain a todo list. This function isn't maintained but you can add and remove items.

Give it a list of game participants and it will show who's turn it is. Click/tap the screen to advance to the next turn.

A simple game of dots and boxes. Local multiplayer only.

Contains some stuff about physics and science

• Geometric formulas: Formulas for surface and perimeter of 2D shapes

Advanced calculator with units support and bigint, based on mathjs (basically a mathjs GUI).