Circuit design software that makes it easy to design, document, and debug electronics projects for the breadboard (more info in the comments). Would you find this useful? (x-post with r/ArduinoProjects) : r/arduino
Breadboard Software Simulator - Colaboratory
PEBBLE - Software - PICAXE
Virtual Breadboard 4.15 Free Download
3 Free Virtual Breadboard Software to Design Electronic Circuit
The Advantages & Disadvantages of PCB Designing with Breadboards | Altium Designer