Looking for MultiMedia Logic? A logic simulator that runs online
MultiMedia Logic (MMLogic) is a free logic design program for learning, made by Softronics for 32-bit Windows. Its last official release is version 1.4 from January 2004; a community project on SourceForge carried it on, with its last update in 2016. 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 MultiMedia Logic is good at
MultiMedia Logic has a lovely idea at its heart: your logic circuits can talk to the real computer, reading the keyboard and driving the screen, serial ports, the PC speaker, wave sounds and bitmaps. That makes it fun for small projects like a traffic light, Simon Says or a Morse code sender, and it is still freeware.
How digiwleea is different
digiwleea runs in any modern browser, so it works the same on Windows, macOS, Linux, a Chromebook or a phone, with nothing to install. It also starts one layer deeper: instead of beginning with ready-made gates you build the gates themselves from CMOS transistors, and the simulator checks each one against its truth table. A guided 40+ level course then carries you from a single transistor through adders, latches, registers and memory to a working 8-bit CPU, with theory lessons and an AI tutor (Wleea) alongside. What it does not do is connect circuits to your PC's real devices: everything stays inside the simulator.
| MultiMedia Logic | digiwleea | |
|---|---|---|
| Runs on | 32-bit Windows desktop app | Any modern browser, any OS |
| Latest official release | Version 1.4 (2004) | Updated in 2026 |
| Smallest building block | Pre-built gates and devices | CMOS transistors (build the gates too) |
| Real PC devices (keyboard, sound, bitmaps) | Yes | No, everything stays in the simulator |
| Guided course to a CPU | No | Yes, 40+ levels |
| Price | Free (freeware) | Free lab and Act I; Premium for the full course |
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 MultiMedia Logic alternative?
Yes, if you want to understand digital logic from the ground up. digiwleea is a free, in-browser simulator with a guided 40+ 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 expanded AI tutoring are included in the monthly or annual Premium subscription.
Do I need to install anything?
No. digiwleea runs entirely in your browser, on desktop or mobile, and works offline once loaded.