digiwleea: a free CircuitVerse alternative
CircuitVerse is a popular free online digital logic simulator with a big component library and classroom features. If that is what brought you here, digiwleea is a free, in-browser alternative with a different angle: you build a computer from the transistor up.
What CircuitVerse is good at
CircuitVerse is great when you already know your gates and want to drag pre-built components together quickly, or when a teacher needs to manage classes and assignments.
How digiwleea is different
digiwleea starts one level deeper. Instead of dropping in a ready-made AND gate, you build it from individual CMOS transistors and the simulator verifies it against the real truth table, so you understand why the gate works, not just that it does. From there a guided 30+ level course and a gamified "sand to CPU" journey carry you all the way up to a working 8-bit processor, with an AI tutor (Wleea) that can explain or build circuits alongside you.
| CircuitVerse | digiwleea | |
|---|---|---|
| Smallest building block | Pre-built logic gates | Individual CMOS transistors |
| Guided curriculum | Mostly open sandbox | 30+ level course, transistor to CPU |
| AI tutor | No | Yes (Wleea, account-gated) |
| Goal | General circuit sandbox | Understand a CPU from the ground up |
| Price / install | Free, in-browser | Free, in-browser, no sign-up to start |
No sign-up is needed to start: open the lab and place your first transistor, or read the free theory course. The account (and the AI tutor) are optional.
See for yourself: build a logic gate from transistors in the simulator, then follow the path from sand to an 8-bit CPU.
Open the digiwleea lab →Frequently asked
Is digiwleea a good CircuitVerse alternative?
Yes, if you want to understand digital logic from the ground up. digiwleea is a free, in-browser simulator and 30+ level course where you build every gate from CMOS transistors and work up to a real 8-bit CPU, with an AI tutor to help.
Is digiwleea free?
The sandbox lab and the first act of the course are free and need no sign-up. An optional account adds the AI tutor and cross-device sync; the full course and tutor are a one-time unlock plus an optional subscription.
Do I need to install anything?
No. digiwleea runs entirely in your browser, on desktop or mobile, and works offline once loaded.