Breadboard Simulator
Your circuit, as real 74-series chips on a breadboard.
A schematic isn't a build. This online breadboard simulator is a digital circuit simulator for real parts: it turns your gates into the actual 74LS TTL packages you'll push into a breadboard — with every pinout, the package count, the supply connections, probe points to check your signals, and a wire-colour plan so the finished board is easy to trace.
Free to use, with no limits. Create an account to save your work.
From schematic to a board you can build.
Map gates to packages
Each gate is assigned to a slot in a real IC. Quad packages hold four gates, so you see exactly how many chips the design needs.
Read the pinouts
Every package is drawn pin by pin, with the pins your design uses highlighted — no datasheet hunting mid-lab.
Connect the supply
Power and ground for every chip are listed, so no package is left floating when you switch on.
Probe and wire by colour
Probe points mark where to check your signals, and a colour plan keeps power, ground and signals easy to tell apart.
F = AB + C, wire by wire.
The same two-gate circuit from Logic Gate Simulator, as a build sheet. U1 is a 74LS08, U2 a 74LS32. Colours shown are an example plan.
If F is wrong, P1 tells you whether the fault is before or after the AND gate.
Three spare gates on each chip — room to grow before you need another package.