Web app for browsing, reading and downloading eBooks stored in Calibre
PICSimLab is a realtime emulator for PIC, Arduino, STM32, ESP32, ...
A national virtual bridge engineering contest for kids of all ages.
(X)BNF simple and clever translation grammar compiler
An educational software system of a tiny self-compiling C compiler
Allows you to build your own circuits and test them
Search Wikipedia in every language in this WebApp
Generates random fake names
A functional HP-style command-line RPN scientific calculator