A Video Demonstration of Kicad's ability/compatibility with BreadBoard (BB) is posted at YouTube. https://youtu.be/j06vDN3KJtE The Demo shows several aspects of this, including NGSpice Simulation of a BreadBoard's Circuit (also shows the equivalent Standard Circuit' simulation for comparison).
BreadBoard and Jumper-Wires for Use In Kicad Kicad uses Footprints in the PCB layout. Footprints can be linked to 3D-Models (STEP and/or WRL(graphic). Footprints can be linked to Schematic 'Symbols'.
NOTE: The posted Parts (Jumper/Wire and BB-Mini) have Colored Step Files and are Linked to them in the Footprints. User needs to set their Visibility in the Footprint-3D panel and may need to change the Link to them on User's system... And, best to have only one color enabled to avoid Color-Bleeding especially on some old machines.... Once placed on BB (or PCB) they will retain the set color/link until/if user Updates from Library. Thus, just 'Update', don't update from Library.
Schematic's are NOT absolutely required for a BreadBoard (or, PCB) and simple Hand-Sketched hobby circuits are an ideal use-case for this. Naturally, it's always preferred to have a Schematic (for various reasons).
User's will need to consider and ERC/DRC aspects (including settings, ignore, warnings, errors...etc) and make appropriate settings as needed.
(I ignore all ERC/DRC and I generally don't use the Tool)
Note: Although User's can have both PCB-circuit and BB-circuit in the same Schematic, consideration to duplication of Netlist items may cause difficulty... (the example Circuit's in Video work fine if both are in Schematic but I chose to delete one or the other for Video).
If User chooses, the 3D-Viewer has File>Export of the Graphic
Lastly, this Video is NOT a Tutorial on Simulation or, on Kicad usage...
Also posted is the Jumper-Wire (FreeCAD for those desirous of Tweaking and/or Creating new Jumpers)
BB dimensions vary depending brand/source these are based on my hardware and are within a few Millimeters of one-another. Wires/Jumpers are dimensionally close-enough for use but are not Exact - Many represent an Average that will enable use for Straight and Angled orientation with only Minor notice...(I hope!)
FOOTPRINT's and SYMBOL's Also posted
I generally don't fuss about Detailing out various aspects of Footprints such as Silk, Courtyard...etc.