Launched this week
Digiwleea
Build a working CPU from transistors, in your browser
12 followers
Build a working CPU from transistors, in your browser
12 followers
A free, browser-based switch-level logic lab and course. Start from one transistor and build up to a working 8-bit CPU, every circuit really simulated. Tinker in the sandbox, take the auto-checked course, or play the interactive explainers (how gates, binary, memory, and CPUs work). Optional AI tutor builds circuits with you. Free to start.
Does the simulation actually run at the SPICE level so I can see parasitic effects, or is it a higher abstraction that just models ideal switches?
Built my first NAND gate from actual transistors and watching the truth table light up was a strangely satisfying moment. The auto-checked lessons make it feel less intimidating than other circuit sims I've poked at.
finally a sandbox where you actually see the transistor switching, not just block diagrams. the auto-checked course makes the jump from NAND gates to an 8-bit CPU feel way less scary than i expected.
The fact that every transistor-level circuit actually runs in the browser with no install or signup is wild. Love that you can nudge a single wire and watch the whole CPU timing change.