Http://logic.ly/ to build your a logic series! Source: almost 3 years ago

In logic.ly this can easily be drawn as this. However, I'm sure this is far from optimized. I'm sure I made things way too complicated. All I know is that this digital circuit satisfies OP's truth table.!<. Source: almost 3 years ago

There's also https://librepcb.org/ Has anyone had time to try Horizon and/or LibrePCB and compare them to KiCad? - Source: Hacker News / 12 months ago

On the open source front, LibrePCB seems to be the only contender, never used it myself, but have heard good things and met some devs at a conference and they were nice. The level of support you get there may be a bit more personal. Otoh, if you've never designed PCBs before, it may be hard to even tell if something is a bug... Source: 12 months ago

I would throw LibrePCB into the mix. Coming from Eagle, it was easier for me to grasp than KiCad. Source: about 1 year ago

Also LibrePCB at https://librepcb.org A bit "lighter" in size than KiCad. Source: about 2 years ago

I've been turning out some nice results from LibrePCB. It has a learning curve like anything else but its not an impossibly convoluted workflow like some of the more established FOSS programs out there. Source: over 2 years ago