Design Spark

[Muzzer]

For quick and simple PCBs, I've used https://easyeda.com/ from JLCPCB which integrates with their sister company LCSC's online component shop. If you use the associated library, you can then order the resulting PCBs and parts in one order so that the whole project arrives together. The free version of the layout tool is fairly comprehensive and includes an autorouter. The main difference from the full cream version is that you can't create your own parts library.

I discovered that the downside of ordering PCBs and compts together is that the combined value attracts those silly tax / duty / admin charges on the way into the UK. That sort of wiped out much of the saving, so next time I will order them separately. If you order just the PCBs, they cost $2 for 5 (plus P&P) for 2-sided boards up to 100mm x 100mm on a 24h turnaround. You can track their progress through the factory.